Fabric for civil aviation aircrafts coating

FIELD: textile industry.

SUBSTANCE: fabric is of polyester or polyetheretherketone type. The fabric coating is produced by way of cross-linking anionic aliphatic dispersion with OH-number < 0.5 with hydrophilous aliphatic polyisocyanate, preferably, based on hexamethylenediisocyanate with NCO value 17-18. The fabric may be woven of already coated fibres or filament yarns. The coating is applied on the fabric by way of its contacting with a gluing compound containing a gluing substance activated to perform cross-linking when heated. Then the fabric is ironed at a temperature of 95-100°C. The fabric is pitched on structures at a surface temperature, with the seams and laps not heated over 100°C. The invention excludes the necessity of further application of coating on the fabric after application the coating which ensures application of a significantly less weight in the process of coating.

EFFECT: one eliminates application of any organic solvents in the gluing compounds providing for tension of oil varnishes, liquifiers, fillers or coloured oil varnishes and offers an environmentally safe method for application of coating on an aircraft.

9 cl, 3 ex

 

This invention relates to a fabric for covering air aircraft of civil aviation, as well as to the method of manufacturing a tissue to cover and, in addition, the method of applying the fabric to the air flying machine in the form of a coating.

To reduce the mass production of aircraft aircraft of civil aviation and in the production of a remotely controlled air aircraft still using a design in which the main body of the air flying machine in whole or in its parts are made of spars and ribs. They can be manufactured from metal, wood and/or plastic and they need to apply coating. This coating is preferably relates to thin films or fabrics, which are applied to the structure.

In WO 96/14208 A1 disclosed a thin film, which is suitable for application as a coating on the air flying machine. In the patent are considering the use of multi-layer material containing fine closepreview film carrier, on which is applied to the polymer layer based on polyurethane polymers in addition to the pressure-sensitive adhesive layer that is applied on the polymer layer from the side, facing away from the thin film carrier. This publication is disclosed a thin film for application to the operation of the coating on the structure of the air of the aircraft, but not the fabric, which is suitable for application as a coating.

In the US 20060084336 A1 disclosed multi-layer stretch fabric for covering designs air aircraft. This fabric consists of laminated layers and different especially low gas permeability. So this fabric in particular is designed to create airships type "Zeppelin".

In addition, for use as coatings air aircraft known tissue to cover, made from flax, cotton, or a complex of the polyester. Such fabric is applied using nitrocellulose adhesive composition or adhesive composition of the chlorinated rubber parts aircraft aircraft on which to apply the coating, and once the adhesive dries, the tissue tension occurs. For this koinopolitia fabric seat when heated and paint with an oil varnish. After several coats of oil varnish coating to protect from UV radiation is applied from one to two layers of silver-containing oil varnish. Finally put the oil varnish for the finishing coat.

In DE 849051 revealed the cover for the air flying machine, which consists of at least two pieces of cloth, lying one on top of another, multifilament yarn bases which are under glom one to another. Each canvas fabric stretch separately, and then combined with the processing of the resin. Fabric treated with solvent-free impregnating substances, and after the stretching process causes the tensioning oil varnish.

The disadvantage of these tissues and treatments known from the previous prior art, is that when applying Konoplianik tissues, despite the fact that the fabric cover nitrocellulose adhesive, this adhesive is not associated with the fibers.

In addition, nitrocellulose adhesive and oil varnishes additionally become more stringent over time, which leads to embrittlement of the adhesive layer and the coating as a whole. Because of this, the coating becomes sensitive to mechanical damage, and you can detach sections cover without applying external force. Finally, in the case of solutions for coating air aircraft, known from the previous prior art, after a few years it comes to applying a new cover.

Another disadvantage solutions, coatings air flying machines of the previous prior art is an uncontrolled increase of mass due to staining colors and layers that are causing the. Weighing per square meter of fabric disclosed in the prior art, defined the ability to change the density from 100 to 400 g/m2.

In addition, koinopolitia fabric with a surface coating of paint material with an organic solvent known in the field of model aircraft, with germetezirujushie when heated, the adhesive composition is applied on the reverse side. According to GB 2215746 A coating can be a polymer solution, which is a polyurethane or a copolymer of PVC/PVA, and the polymer can be introduced in combination with cross-linking reagent and a catalyst, dye or metallic pigment. Also known koinopolitia fabric for air aircraft having a surface coating of paint material with an organic solvent, which have high strength, but low shrinkage and low additional explosive resistance. These products are attached with a heat-activated adhesives, which have the disadvantage associated with the fact that at high temperatures they become soft, the coating loses its elasticity and may even shrink, or the coating may begin to float on the adhesive composition, which significantly limits their useful properties.

Task n the present invention with this in mind, the previous prior art is to create a material for covering the air flying machine, which does not possess the disadvantages of the coatings of the prior art.

The present invention is solved by means of the characteristic features of the independent claims.

The purpose of the present invention is to create a tissue to cover air aircraft for civilian purposes, representing closepreview or polyetheretherketone cloth, and the cloth cover stitched, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion. In a preferred embodiment, the coating is obtained by crosslinking anionic aliphatic dispersion preferably with HE-number <0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate, preferably with NCO-value of 17 to 18.

The cloth covering of the present invention, which is applied in the form of a coating by this method is characterized by an initial layer of the coating. Additional layers can be applied to this initial layer of the coating, and such initial coverage describe as a primer coating of the present invention.

An additional objective of the present invention is to create a tissue to cover air aircraft for civilian purposes, representing closepreview or floor is apireference fabric, this fabric is woven from fibers or multifilament, respectively yarn ring spinning method, the fiber yarns or twisted yarns, which previously was applied in the form of a coating stitched, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion. In a preferred embodiment, the coating on the fiber or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn, carried out by crosslinking anionic aliphatic dispersion preferably with HE-number <0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate, preferably with NCO-value of 17 to 18.

The present invention is a fiber or filament yarns can be processed into yarn ring spinning method, the fiber yarn or twisted yarn before weaving. For the skilled in the art specialist is obvious that this invention is also clearly refers to the coating on recycled fiber or filament yarn.

Provided that the fiber or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn, coated before the weaving process, the present invention assume that predude the color pigments can be introduced in a heat-resistant anionic aliphatic closepreview-polyurethane dispersion. You can also use only one dispersion containing give color to the pigment. Assume that give color pigments of the present invention also encompass give color to the recipe, which includes titanium dioxide and give color to the reactants.

In the present invention assume that the fabric is made from possessing a coating of fibres and filament yarns, respectively yarn ring spinning method, the fiber yarns or twisted yarns, along with the coating on the fabric, produced either with coated or non-coated fibers and filament yarns, respectively yarn ring spinning method, the fiber yarn or twisted yarn. In each case, you can add give color pigments, hydrophobic substances, protects from UV radiation substances and/or reduce the ability to fire substances.

In an alternative embodiment, application of the fabric to cover the anionic aliphatic dispersion may contain a dye or pigment. In a preferred embodiment, the pigment comprises particles of aluminum or additional additives which stabilize the fabric from exposure to ultraviolet light or other rays, which could accelerate the aging of this tissue. In addition, under asomewhat, that hydrophobic substances can be introduced into the coating closepreview tissue.

In the case where the primer coat comprises entered aluminum particles, additives for UV stabilization and hydrophobic substances, according to the present invention, this coating is durable and wear-resistant thanks to the protective additives. Such a coating is particularly stable against aging under the influence of external influences.

In the further development of fabric to cover in this invention mean that at least one, preferably two, additional, give color to the coating layer applied to the fabric to cover. Preferably, these coatings consisted of the above-described anionic aliphatic closepreview-polyurethane dispersion, thus giving coloring pigments injected into the dispersion.

Cloth cover, which, as described above, a coating, characterized, thus, the initial layer of the coating (primer coating layer and a secondary coating layer, which contains give color pigments. The secondary coating layer can also be defined as give color to the coating layer of the present invention.

In another preferred embodiment, the creation of tissue for coverage under this image is the shadow involve applying an additional coating layer, which contains electrically conductive pigments for discharging electric charge, and/or put an extra coating of conductive material. In both cases, it is preferable that the resistance of the conductive coating layer was in the range of 10-7up to 10-8Ω. These layers cover you can discharge the electric charge without damage with floor areas. In particular, it is possible to avoid lightning strikes, or you can discharge the electric charge. The invention also encompasses the addition of a conductive pigment to the primer layer coating.

In the case where the conductive coating layer is present in the coating, conductive rods must be attached to the external parts aircraft aircraft after coating (transition zone, the edge of the trailing edge of the wing/wing tip and Aileron in addition to the steering wheel depth/rudder horizontal rotation and, if desired, the vertical stabilizer/rudder vertical rotation) relative to the air. You must ensure that conductive layer coating were in the area of the compounds of this coating layer and the conductive rod, and also to provide internal communication between the coating layer and this rod. For example, this can be done with the help of Provo is the present mesotelioma paste. Conductive rods attached where necessary, in the direction of the flow on the lower surface.

In addition, mean tissue to cover, on which is applied to the surface layer. The superficial layer consists of the above-described anionic aliphatic closepreview-polyurethane dispersion, and assume that it is used with a blocker of UV radiation or absorbing UV radiation matter and/or hydrophobic substances.

I mean the cloth covering of the present invention, which, regardless of its intended purpose is, if desired, multiple layers of the coating, however, not all coatings must be applied on a cloth to cover, and a single coating layer can be obtained by repeated application of the corresponding connection. In the present invention to enhance the ability of the coating layer, which should be applied to the fabric, gluing require additional surface treatment of the fabric on which you want to apply coatings, plasma, respectively, by corona discharge. The ability of the coating layers for bonding with each other can also be improved by using a processing plasma, respectively, by corona discharge.

As already described, involve multi-coated fibers and filament yarns, respectively yarn calciopoli spinning, fiber yarn or twisted yarn, and the cover system may consist of primer coatings that give color to the coating layer and the surface layer of the coating. Fiber or filament yarns, respectively yarn ring spinning method, the fiber yarn or spun yarn, which in this way are coated, then processed into fabric, which can again be coated, as described above.

Assume that the fabric for the cover, which closepreview or polyetheretherketone cloth, is a fast-wearing fabric to cover air aircraft according to the present invention, with the fabric cover one sewn containing a coloring pigment, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion. The coating is obtained by crosslinking anionic aliphatic containing a coloring pigment dispersion preferably with HE-number <0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate, preferably with NCO-value of 17 to 18.

Also imply the fast deteriorating fabric to cover, this fabric on which you want to apply the coating includes a fiber or filament yarns, respectively yarn Col is avago spinning method, fiber yarn or twisted yarn, which to textile coated using sewn containing a coloring pigment, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion.

The cloth covering of the present invention has a size of fineness 30-350 decitex in accordance with DIN 53830 T3. In this context, the DIN is an acronym for "German Industrial standard" (Deutsche Industrienorm) or German industrial standard according to German Institute for standardization. These national industry standards can be found in the directory, and they represent the set standards. In the following paragraphs numbers DIN will be treated to authentic standards.

Additionally imply that the density of the fabric to cover in the absence of the applied coating of the present invention, or the weight in accordance with DIN EN 12127 is the mass per unit area of 30 g/m2to 250 g/m2.

In an additional embodiment of the present invention it is preferable that the number of single filament yarns, which consist of complex threads based and duck ranged from 15 to 80, and preferably, the number of complex threads in accordance with DIN EN 1049-2 was 15-60 based and 15-60 duck. The AOC is e, this invention provides a fabric for covering, with complex warp or complex warp and weft subjected to final machining. In final processing are parallel to each other individual filament strands are combined, which may affect the elasticity.

To achieve high strength complex warp and/or filament yarn weft fabric to cover individual filament filament yarn of the warp threads are twisted with one another, receiving beam filament yarn.

For fabrics for coating of the present invention assume that the desired shrinkage of such tissue is about 10% in the longitudinal and transverse directions at a preferred temperature of 150°C. the Optimal processing of fabrics for coating can be performed using this criterion.

The present invention also imply that reach the preferred shrinkage in the transverse direction of about 10%, stored, respectively, during drying of the coating in a drying channel because of the strain on the frame.

In addition, assume that the weave in the fabric is carried out in the form of midleware weave or weave stick rip stop (Ripstop).

The backing fabric to cover by the present invention is a water polyurethanebased the I system. This sign meets environmental criteria and avoids the allocation of CO2during production. However, the invention also includes coating systems-based paint materials with organic solvents.

In a preferred embodiment, the subject matter of the present invention the fabric to cover consists of one or more of the described coatings, which optionally can be coated with the adhesive composition, which comprises a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersions containing high-molecular polyurethane preferably IT is <0.5, and preferably comprising 15% of the curing composition of the encapsulated isocyanates, with polyurethane adhesive crosslinks when exposed to a temperature exceeding 40°C.

Finally, the method of manufacturing a fabric for covering air aircraft of civil aviation is also the aim of the present invention, this is made closepreview or polyetheretherketone fabric with a primer coating layer, in which the crosslinked, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion is obtained by stitching together anionic aliphatic polyisocyanate preferably About the number < 0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate preferably NCO-value of 17 to 18, and later on closepreview or polyetheretherketone fabric is applied above the floor. Alternative fiber or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn, processed, receiving closepreview or polyetheretherketone fabric, with processing in the fabric on the fiber or filament yarns are coated with crosslinked, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion, while the coating is obtained by crosslinking anionic aliphatic dispersion preferably with HE-number <0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate preferably NCO-value of 17 to 18.

According to the present invention also imply that the fabric or fiber, or filament yarns, respectively yarn ring spinning method, the fiber yarn or spun yarn, made of fabric, it is possible to cover one-sewn and containing a coloring pigment, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion.

In addition, assume that the fabric or Alekna, or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn, you can optionally apply an adhesive composition, which comprises a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane preferably IT is <0.5, and preferably comprising 15% of the curing composition of the encapsulated isocyanates.

In one embodiment, the present invention mean that you can use pigmented anionic aliphatic dispersion, which preferably contains aluminum particles as a pigment.

In the present invention, moreover, imply that, in the coating of fabric, you can optionally type a hydrophobic substance or that can be applied hydrophobic layer before applying the primer coating on the fabric, fiber or filament yarn.

If you want to achieve tissue staining to cover, at least one, preferably two colored coating layer can optionally be applied to the fabric or fiber, or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn made from the floor. Such coatings may have different CEE is AMI so, as the labels you apply templates, numbers, and letters.

For a discharge of lightning or electric charges in the present invention mean that you can apply an additional coating layer, preferably represents an anionic aliphatic closepreview-polyurethane dispersion according to claim 1, containing, as suggested by at least one electrically conductive pigment, and/or you can apply an additional coating layer containing a conductive substance. Discharge of charge with such a coating layer is conductive rods relative to the air.

To improve durability of the coating, manufactured during the production process, the present invention is the application of the surface layer, preferably represents an anionic aliphatic closepreview-polyurethane dispersion according to claim 1, which is assumed to include blockers of UV radiation or substances that absorb UV radiation, as well as hydrophobic substances.

According to the present invention can use a fabric that has Tonino 30-350 decitex according to DIN 53830 T3. In addition, this fabric can be characterized by a density in the absence of coating mass per unit area of 30 g/m2to 250 g/m2according to the article is nartu DIN EN 12127, you can use multifilament yarn, for which it is preferable that the number of individual filament strands that make up the complex thread based and duck ranged from 15 to 80.

In the preferred embodiment, it is possible to use the fabric, the shrinkage of the fabric at a temperature of about 150°C is approximately 10% in the longitudinal direction and the transverse direction, and/or preferably during the drying of the coating in a drying channel can be achieved transverse shrinkage of about 10%stretch on the frame.

To prevent destruction of the resulting tissue or structures that must be applied in the form of a coating fabric, imply that you can optionally apply a decreasing ability to fire the coating layer.

In addition, the preferred implementation of the present invention is that each layer of coating fabric coating, or last applied layer of the coating calendarbut for curing and improve the adhesion of the coating layer.

Finally, the coating process air aircraft of civil aviation, in particular the aircraft included in the content of the present invention, however, this process is characterized by the following stages:

A. fabric to cover by the present invention by one the mu PP. 1-20 on the plot on which the fabric is connected with the design, is brought into contact with an adhesive composition constituting a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane preferably IT is <0.5, and preferably comprising 15% of the curing composition of the encapsulated isocyanates, while the design also cover or paint adhesive, and

b. after drying adhesive fabric for covering iron on designs, and

C. areas where the cloth cover was ironed on design, heat up a suitable source of heat (iron) to a temperature of about 95-105°C., preferably 100°C, and

d. once the adhesive has cooled, all covered areas stretched using a suitable heat source (for example, a quartz oscillator or thermobondable) when the surface temperature of approximately 150°C, while

e. you must be sure that at this stage the seams and overlap in addition to the recesses do not heat up above the surface temperature of approximately 100°C, to prevent activation of the adhesive composition, which otherwise seams and overlap can be separated from the recess.

For this reason, the adhesive is also designed for the application of the independence of the about from the application described with coated fabric to cover. When the process of the adhesive composition can be sprayed on the design that you want the coating. This can be done at the site where the fabric cover must be attached to the structure.

After drying the coating iron on designs. Then, using turbovozduhoduvka, the heat source or iron, all ironed areas are heated to a temperature of approximately 100°C to ensure reliable stapling adhesive composition, in which conditions change aggregation encapsulated isocyanates, and so they stitched polyurethane adhesive composition. After cooling, the adhesive composition all have floor areas pull at a temperature of approximately 150°C, using turbovozduhoduvka, respectively, the source of heat.

Particularly useful in the present invention is that due to its layering this fabric already covers all the individual layers of the coating, which could be applied otherwise. It does not attempt applying multiple layers, with regard to specific oil paints or colored coatings, such as fabric, as I assume, includes containing a coloring pigment coating layer.

The use described in this document variance compared to flying the solvents allows to obtain environmentally friendly coating. However, the present invention clearly encompasses the use of adhesives and coatings based on organic solvents.

Reliable and independent of temperature, the connection between the coating and the design makes using the adhesive composition of the present invention. In contrast to the solutions described in the prior art technique, the temperature increase is not accompanied by a softening of the adhesive composition or by shrinkage of the fabric, this fabric could float on the soft adhesive composition.

The interaction of the adhesive composition is reversible at temperatures >100°C, which can be achieved solely summing excessive amount of heat, to create opportunities special branch coverage for the purposes of inspection or repair. Thus, such an adhesive composition in the form in which it was used in the present invention, provides unlimited durability.

Thanks to the substances of the present invention, which will be used as additives for coating, aging tissue to cover, for example, due to exposure to UV radiation or other natural factors can significantly slow down.

In the coating on the fabric, you must use a production plant with an accommodating tensile frame so that you can stretch the fabric crosswise on the frame during drying to achieve and maintain a preferred approximately 10% of the lateral shrinkage of the fabric.

Another objective of the present invention is to create a set for coating air flying machine, comprising a fabric to cover the present invention and the adhesive coating on the fabric, which contains a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane with IT a number of <0.5, and comprising 15% of the curing composition of the encapsulated isocyanates. Additionally, this set may contain corrugated strip and/or a reinforcing tape.

This set provides all the facilities necessary for the coating of fabrics for coating of the present invention on air aircraft, regardless of whether it is by plane or eviemodel.

In General, the fabric for coating and bonding composition of the present invention can achieve a significant reduction in the weight attached to the air flying machine on which you want to apply the coating. This is especially useful for small or light aircraft aircraft, such as balloons, aircraft with remote control, unmanned aerial aerial vehicle for reconnaissance purposes, ultralight aircraft up the Arat and air aircraft category E.

Fundamentally important for the coating on the fabric is the fact that the coating is applied, and it does not penetrate through the fiber or filament yarn, a yarn ring spinning method, the fiber yarn or twisted yarn. To protect the fabric from the ingress of water or other liquids and to receive sealed cover depth cover fabric should be only 1/3 the thickness of the fabric.

An additional advantage of the coating on the fabric of the present invention is that the fabric retains its elasticity. In the methods known from prior art, the fabric was immersed in the resin. This leads to disruption of the structure of the fiber or filament yarn, made from fabric. Drying resin or other liquids, which are immersed in the tissue leads to loss of elasticity of the tissue. Because of this increased danger of damage to the coating as a result of impact forces present during operation of the air on the aircraft, especially on the wings. Such immersion in liquids also have a detrimental effect on tensile strength.

EXAMPLES

EXAMPLE 1

Fabric to cover the air ultralight aircraft with a takeoff weight of approximately 600 kg For the manufacture of fabrics for coating with the above-mentioned technical features, the properties did the following:

For the basics: you can create a base containing approximately 43 composite yarns per centimeter. To create the basics of using high-strength closepreview complex thread with a residual shrinkage of 5-12%. The overall density of the original fabric, which has no coating should be from 70 to 100 g/m2. To obtain this density using fiber yarn with approximately a characteristic 70 DETEX and approximate diameter of 0.15-0.20 mm For the regulation of tissue elasticity filament yarn optionally twist.

Curl has an impact on E-module such tissue, respectively, the elastic components of this tissue. As the weft yarn used multifilament yarn of the same material. In this example, the weft use approximately 32 multifilament yarn. However, these amounts can certainly greatly change. When the textile is necessary to take the necessary measures to ensure that textile happened without strain or distortion. The application of certain finishes for fibers, in particular Skybon, after washing the textile is not essential, since the layers of the coating Skybon you can apply as a site of contact between the coating and the fiber.

As recommended before applying the coating as a separate process or he shall ain mode, the fabric is subjected to treatment by corona discharge or pre-treated with plasma for optimal attachment of the composition for coating fiber yarn. The coating consists of polyurethane. Depending on the E-module, which need to be achieved, and the desired properties can be applied koinopolitia, prostopleer - or polycarbonate-polyurethane or a mixture thereof. For process optimization and operational properties of the system need to sew.

Among other things, the stitching in addition to chemical stability and resistance to solvents is increased thermostability. Changing the degree of crosslinking, you can also control the degree of stiffness of the fabric in combination with mixtures. In the case where PU-system is a system based solvents, it must contain a sufficient number of Oh-groups with IT a number of <0.5 for obtaining the degree of crosslinking, which is achieved using hydrophilic, aliphatic polyisocyanate based hexamethylenediisocyanate with NCO-value 17-18. When there exists representing a dispersion system of the present invention, the dispersion system interacts with the formation of urea in the secondary stitching with polyurethane. In this case, as cross-linking reagent is also used hydrophilic aliphatic polyisocyanate based hexamethylenediisocyanate content of 2.5 to 4.0 weight parts (NCO-value 17-18).

To achieve atomnogo weight ratio on the fabric applied twice above, containing a coloring pigment composition for coating. During the coating process should take the necessary measures to ensure that the shrinkage was not separated from the fabric that you want to apply the coating, due to operations in the drying channel. If the shrinkage is approximately 5% or less, you can increase shrinkage, fixing temperature and the relaxation ratio. After application to give the color coating is applied at least one system that protects against UV radiation. To increase the value of the product, the fabric must be processed twice, causing protects against UV radiation coverage. In protecting against UV-radiation coating can also optionally enter a hydrophobic substance. The material produced according to the description currently used as a material for coating air ultralight aircraft. If the strength test the tensile strength should be about 600 N or exceed this value.

EXAMPLE 2

Fabric for covering light aircraft aircraft with a takeoff weight of approximately 3000 kg For the manufacture of fabrics for the covering with the above specifications was completed the following:

For the basics: you can create a base containing approximately 27 complex threads per centimetre. To create the basis of use of high-strength closepreview complex thread with a residual shrinkage of 5-12%. The overall density of the original fabric, which has no coating should be from 70 to 100 g/m2. To obtain this density using fiber yarn with approximately a characteristic 180 DETEX. To regulate the elasticity of the fabric filament yarn optionally twist.

Curl has an impact on E-module such tissue, respectively, the elastic components of this tissue. As the weft yarn used multifilament yarn of the same material. In this example, the weft is used by about 24 filament yarn. However, these amounts can certainly greatly change. When the textile is necessary to take the necessary measures to ensure that textile happened without strain or distortion. The application of certain finishes for fibers, in particular Skybon, after washing the textile is not essential, since the layers of the coating Skybon you can apply as a site of contact between the coating and the fiber.

As recommended before applying the coating as a separate process or online fabric treated by corona discharge or pre-treated with plasma for optimal attachment of the composition for coating fiber yarn. The coating consists of polyurethane. Depending on the E-module, it is who you need to reach and the desired properties can be applied koinopolitia, prostopleer - or polycarbonate-polyurethane or a mixture thereof. For process optimization and operational properties of the system need to sew.

Among other things, the stitching in addition to chemical stability and resistance to solvents is increased thermostability. Changing the degree of crosslinking, you can also control the degree of stiffness of the fabric in combination with mixtures. In the case where PU-system is a system based solvents, it must contain a sufficient number of Oh-groups with IT a number of <0.5 for obtaining the degree of crosslinking, which is achieved using hydrophilic, aliphatic polyisocyanate based hexamethylenediisocyanate with NCO-value 17-18. When there exists representing a dispersion system of the present invention, the dispersion system interacts with the formation of urea in the secondary stitching with polyurethane. In this case, as cross-linking reagent is also used hydrophilic aliphatic polyisocyanate based hexamethylenediisocyanate content of 2.5 to 4.0 weight parts (NCO-value 17-18).

To achieve a reasonable weight ratio on the fabric applied twice above, containing okresu the store pigment composition for coating. During the coating process should take the necessary measures to ensure that the shrinkage was not separated from the fabric that you want to apply the coating, due to operations in the drying channel. If the shrinkage is approximately 5% or less, you can increase shrinkage, fixing temperature and the relaxation ratio. After application to give the color coating is applied at least one system that protects against UV radiation. To increase the value of the product, the fabric must be processed twice, causing protects against UV radiation coverage. In protecting against UV-radiation coating can also optionally enter a hydrophobic substance. The material produced according to the description currently used as a material for covering light aircraft aircraft weighing up to 3000 kg During the strength test the tensile strength should be about 850 N or exceed this value.

EXAMPLE 3

Fabric for covering light aircraft aircraft with a takeoff weight of approximately 6000 kg For the manufacture of fabrics for the covering with the above specifications was completed the following:

For the basics: you can create a base containing approximately 22-27 complex threads per centimetre. To create the basics of using high-strength, konopa efyrnwy complex thread with a residual shrinkage of 5-12%. The overall density of the original fabric, not having the floor, shall be from 110 to 130 g/m2. To obtain this density using fiber yarn with approximately a characteristic 180 DETEX. To regulate the elasticity of the fabric filament yarn optionally twist.

Curl has an impact on E-module such tissue, respectively, the elastic components of this tissue. As the weft yarn used multifilament yarn of the same material. In this example, the weft use approximately 18-22 filament yarn. However, these amounts can certainly greatly change. When the textile is necessary to take the necessary measures to ensure that textile happened without strain or distortion. The application of certain finishes for fibers, in particular Skybon, after washing the textile is not essential, since the layers of the coating Skybon you can apply as a site of contact between the coating and the fiber.

As recommended before applying the coating as a separate process or online fabric treated by corona discharge or pre-treated with plasma for optimal attachment of the composition for coating fiber yarn. The coating consists of polyurethane. Depending on the E-module which you want to achieve, and the desired properties can be applied koinopolitia, prostopleer - or polycarbonate-polyurethane or a mixture thereof. For process optimization and operational properties of the system need to sew.

Among other things, the stitching in addition to chemical stability and resistance to solvents is increased thermostability. Changing the degree of crosslinking, you can also control the degree of stiffness of the fabric in combination with mixtures. In the case where PU-system is a system based solvents, it must contain a sufficient number of Oh-groups with IT a number of <0.5 for obtaining the degree of crosslinking, which is achieved using hydrophilic, aliphatic polyisocyanate based hexamethylenediisocyanate with NCO-value 17-18. When there exists representing a dispersion system of the present invention, the dispersion system interacts with the formation of urea in the secondary stitching with polyurethane. In this case, as cross-linking reagent is also used hydrophilic aliphatic polyisocyanate based hexamethylenediisocyanate content of 2.5 to 4.0 weight parts (NCO-value 17-18).

To achieve a reasonable weight ratio on the fabric applied twice above, containing okresu the store pigment composition for coating. During the coating process should take the necessary measures to ensure that the shrinkage was not separated from the fabric that you want to apply the coating, due to operations in the drying channel. If the shrinkage is approximately 5% or less, you can increase shrinkage, fixing temperature and the relaxation ratio. After application to give the color coating is applied at least one system that protects against UV radiation. To increase the value of the product, the fabric must be processed twice, causing protects against UV radiation coverage. In protecting against UV-radiation coating can also optionally enter a hydrophobic substance. The material produced according to the description currently used as a material for covering light aircraft aircraft weighing up to 6000 kg During the strength test the tensile strength should be around 1100 N or exceed this value.

1. Fabric to cover air aircraft of civil aviation, including closepreview or polyetheretherketone fabric, wherein the fabric-covered sewn, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion, where the coating is obtained by crosslinking anionic aliphatic dispersion preferably with HE-number <0,5 hydrophilic Alif the political polyisocyanate, preferably on the basis of hexamethylenediisocyanate preferably NCO-value of 17 to 18.

2. Fabric to cover air aircraft of civil aviation, including closepreview or polyetheretherketone fabric, wherein the fabric is woven from fibers or multifilament or yarn ring spinning method, the fiber yarns or twisted yarns, which are pre-coated crosslinked, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion, where the coating is obtained by crosslinking anionic aliphatic dispersion preferably with HE-number <0,5 hydrophilic aliphatic polyisocyanate, preferably on the basis of hexamethylenediisocyanate preferably NCO-value of 17 to 18.

3. Fabric for covering according to claim 1 or 2, characterized in that the fabric, fiber, filament yarns or yarn ring spinning method, the fiber yarn or spun yarn is covered by one or more additional layers of coating of crosslinked, heat-resistant, anionic aliphatic closepreview-polyurethane dispersion.

4. Fabric for covering according to claim 1 or 2, characterized in that the heat-resistant anionic aliphatic koinopolitia-polyurethane dispersion contains additives, preferably giving coloring pigments, electrically conductive is their pigments, aluminum particles, blockers of UV radiation or absorbing UV radiation substances, hydrophobic substances and/or substances to reduce Flammability.

5. Fabric for covering according to claim 1 or 2, characterized in that cause additional coating layer containing a conductive substance.

6. Fabric for covering according to claim 1 or 2, characterized in that the fabric is additionally coated adhesive composition which contains a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane preferably IT is <0.5, and preferably containing 15% curing of the composition of the encapsulated isocyanates.

7. Method of coating air aircraft of civil aviation, in particular an aircraft, characterized in that it comprises the following stages:
A. the contacting tissue to cover according to any one of claims 1 to 6 with an adhesive composition on the plot on which it should be attached to the structure, and the adhesive composition contains a heat-activated, cross-linking when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane, preferably IT is the number of <0.5, and preferably containing 15% curing of the composition of the encapsulated isocyanates, while the design also on the current adhesive composition; and
b. proglazhivanie cloth to cover on the structure after drying the adhesive composition to the tissue; and
C. heating the areas where the cloth covering iron on designs suitable source of heat, to a temperature of about 95-100°C;
d. pulling all of the sites with the coating after cooling the adhesive composition, using a suitable heat source, when the surface temperature of approximately 150°C;
that is, the seams and overlap in addition to the holes at this stage is not heated above about 100°C to prevent activation of the adhesive composition, which otherwise seams and overlap can be separated from the recess.

8. Set for coating air aircraft of civil aviation, including fabric for coating according to any one of claims 1 to 6, and the adhesive coating on the fabric, which is made of a heat-activated, crosslinked when heated adhesive based on an aqueous anionic dispersion of high molecular weight polyurethane with HE preferred number <0.5, and preferably containing 15% curing of the composition of the encapsulated isocyanates, with polyurethane adhesive sew, heating to a temperature more than 40°C.

9. The set of claim 8, which further comprises a corrugated strip and/or a reinforcing tape.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to method of producing gas-permeable imitation multilayer leather, and imitation leather produced thereof. Said leather is made up of the layer of flat textile warp with, at least one foamed polyurethane-based intermediate layer applied there on that feature, at least, partially exposed porous structure, and face polyurethane-based layer applied on, at least, one intermediate layer. First stage of proposed method comprises applying face layer on peel-apart web. Then, at least one intermediate layer is applied onto face layer. Now, web layer is applied on, at least, one intermediate layer and web is separated from face layer. Note here that, to produce face layer, aqueous aliphatic polyurethane dispersion in liquid phase is applied onto web, and, immediately after applying said dispersion, water contained therein is evaporated by supplying heat thereto for 5 min, max., to facilitate drying of polyurethane dispersion on web without film formation and forming of face layer with micro pores.

EFFECT: small-sized pores, goo gas permeability.

39 cl, 4 dwg

Simulated leather // 2307208

FIELD: leather and textile industry.

SUBSTANCE: invention relates to new layered materials with polymer coating and to a process of manufacture thereof, in particular to manufacture of simulated leathers, which can be employed as furniture upholstery in interiors motor cars, aircrafts, and water transport as well as technical- and special-destination articles. Simulated leather includes interconnected knitted backing made from polyamide threads and containing polyurethane and polyurethane film based on 4,4'-diphenylmethanediisocyanate and polytetramethylene ether glycol. Knitted backing further contains polyurethane threads "spandex" knitted through each second row at weight ratio of the latter to polyamide threads 1:(1-2). Polyurethane contained in knitted backing and polyurethane film additionally contain modifier: phosphorus-boron-containing polyol having following formula: , where R represents -CH2-CH2-, p=1, q=3, and m=2, while amount of polyurethane in knitted backing is 10-12% of the weight of backing.

EFFECT: improved complex of performance characteristics including fireproofness, high extensibility, and bond strength between layers, while preserving their high physicochemical properties of textile materials.

1 tbl, 4 ex

FIELD: polymer materials.

SUBSTANCE: polymer composition for preparing face coating of artificial leather for upper containing 54.8-59.5% of 25% dimethylformamide solution of polyurethane "Vitur P-0112" and 14.2-15.5% of dimethylformamide further contains additive: powdered interpolymer complex based on polyacrylic acid, sodium polyphosphate and monobasic dipyridyl (9.5-16.8%) and, additionally, isopropyl alcohol (14.2-15.5%). Once applied onto substrate, composition is hardened with 10-30% aqueous dimethylformamide solution. Coating increases hygroscopicity from 2.1 to 16.5%, wettability from 106.2 to `60% for 2 h and from 149.8 to 175% for 24 h.

EFFECT: considerably improved hygienic properties of material, achieved rather high vapor-permeability characteristics and physicomechanical properties at satisfactory percentage of shrinkage during drying of face coating.

2 tbl

FIELD: light industry; polymer fabric materials welded by high-frequency currents for inflatable floating devices and medical purpose.

SUBSTANCE: proposed multi-layer hermetic elastic cold-resistant material of artificial leather type includes textile warp at surface density of 60-150 g/m2 made from synthetic complex threads at linear density of 9-19 tex and twist of 200±20 per meter, adhesive layer formed from solution of polyester urethane solution in dimethyl formamide at viscosity of 50-70 poises and polyisocyanate at viscosity of 1.5 poises at their mass ratio of 1:0.005-0.02 and face polymer coat on base of polyester urethane solution in dimethyl formamide at viscosity of 150-250 poises applied in 2-4 layers at ratio of layers in material by mass :textile warp: adhesive layer: face polymer coat of 1:0.1-0.2:0.7-2. According to another version, material includes textile warp at surface density of 60-150 g/m2 made from synthetic complex threads at linear density of 9-18 tex and twist of 200±20 per meter, adhesive layer formed from polyester urethane solution in dimethyl formamide at viscosity of 50-70 poises and polyisocyanate at viscosity of 1.5 poises at mass ratio of 1:0.005-0.02 which is located on wrong and face sides of warp followed by forming face polymer coat on both sides on base of polyester urethane solution in dimethyl formamide at viscosity of 150-250 poises applied in one layer on wrong side and in 2-4 layers on face side at mass ratio of layers in material: textile warp: adhesive layer: face polymer coat of 1:0.-0.4:1-2. Proposed material possesses water and air tightness, high strength of weld seams and bonding of coat with warp.

EFFECT: enhanced efficiency; improved quality of material.

3 cl, 2 tbl, 19 ex

The invention relates to the footwear industry and relates, in particular, lining, heel shoes, used in the Shoe industry

Artificial leather // 2142030
The invention relates to a new multi-layered materials, namely the artificial leather on a knitted base with polyurethane protective layer and can be used in light industry for the manufacture of Shoe uppers, coats, jackets, protective clothing, goods for tourism, transport, furniture

Artificial leather // 2134737
The invention relates to a new multi-layer materials with a polymer coating, in particular to artificial leather, which can be used in the textile industry for the manufacture of material suitable for upholstery in the salons of the auto, air and hydraulic, as well as for technical and special purpose

Artificial leather // 2026911
The invention relates to light industry and the development of artificial skin used for various consumer products, including decorative finishes optical engineering

The invention relates to the production of artificial leather for shoes

FIELD: textile, paper.

SUBSTANCE: fabric contains threads and gaps between threads, at the same time gaps between threads have average width of more than 100 mcm. At least one of threads consists of many fibres. The specified at least one thread has cavities between fibres, at the same time cavities are filled with polymer material. Gaps remain open, and size of gaps remains same as before treatment. Polymer material is located substantially in cavities of a thread and covers fibres available inside relative to the external surface of the specified thread.

EFFECT: filling of cavities between fibres with polymer material prevents water absorption by the specified gaps and results in reduced absorption of water by the fabric.

56 cl, 13 dwg, 5 tbl, 2 ex

FIELD: transport.

SUBSTANCE: inventions relate to composition with low friction factor doe safety belts and to safety belts coated by said composition. Proposed composition comprises the following components: a) polyether-polyurethane; b) low-molecular polyurethane with free NCO-groups and comprising aliphatic chain; c) polyurethane without free NCO-groups; d) polyethylene; e) dimethyl silicone. Safety belt is coated by such composition.

EFFECT: ease of use, higher friction performances.

12 cl

FIELD: process engineering.

SUBSTANCE: proposed invention relates to thermosetting materials, particularly to methods intended for increasing cohesive capacity of filaments made from chopped aramide fiber. Proposed method comprises impregnating the fiber with film-forming binder, drying impregnated fiber, finishing the fiber (not obligatorily) and chopping said fiber into 1 to-16 mm-long parts. Prior to applying the binder, fiber is subjected to twisting to produce fiber with 10-to-150 twists per metre. Fiber is chopped at rotor-type chipper.

EFFECT: invention allows increasing bulk density of fibrous materials, thus, facilitating feeding said materials into extruder.

8 cl, 3 tbl, 3 ex

FIELD: textiles, paper.

SUBSTANCE: invention is related to chemical technology of fibrous materials, in particular to production of compounds for purposeful variation of textile material properties for shape-stable treatment of apparel components and may be used in apparel and textile branches of light industry. Compound includes the following components, wt %: 40-60 of film-making preparation - polyurethane dispersion Aquapol®-10, 2-6 of thickener Laprol D3 and 37-55 of water.

EFFECT: invention makes it possible to improve quality of garment by reduction of components stiffness, stale fixation of their shape and its preservation in process of component operation due to chemical interaction of compound components with fibrous structure of materials, and also makes it possible to expand assortment of processed textile materials.

2 tbl, 17 ex

FIELD: application of coatings onto substrates for producing of surfaces having texture similar to that of textile products.

SUBSTANCE: method involves coating fiber with polymeric dispersion based on polyurethane; mixing fiber with coating in conjunction with polymeric dispersion so as to produce covering material; applying covering material onto substrate surface; hardening covering material. Covering material contains 5-40 wt% of polymeric dispersion based on at least one polyurethane, with content of solid substance making 25-90 wt%; 0-35 wt% of hexamethylene diisocyanate; 2-20 wt% of fibrous material; 0-20 wt% of solvent; 5-35 wt% of water, and optionally 0.5-10 wt% of covering admixtures, pigments and/or fillers.

EFFECT: provision for manufacturing of surfaces with finishing texture similar to that of textile materials and soft touch provided by simplified process, improved ecology control and labor hygiene.

9 cl

FIELD: glasswork.

SUBSTANCE: invention relates to technology of manufacturing glass fibers and their composites products, in particular to oiling compositions for these fibers. Composition contains les than 5% of solvent and polymerizable base system. This system comprises at least 50% of mixture composed of component(s) including at least one reactive isocyanate group; component(s) including at least one reactive hydroxyl group; and, if necessary, component(s) including at least one reactive amino group.

EFFECT: glass fibers coated by oiling composition according to invention are suitable for use in reinforcing organic or inorganic substances.

19 cl

The invention relates to textile finishing production and can be used in technology maomineena finishing of textile material

FIELD: chemistry.

SUBSTANCE: composition for fire-proof treatment of polyether fibres contains the following in pts.wt: phosphorus-boron-containing methacrylate 45.0, water 55.0, ammonia 8.0, sodium persulphate 0.225-0.45 and ground 23KNTS polycaproamide fibre 0.045-0.225.

EFFECT: high fire-resistance, strength, adhesion to chloroprene rubber.

2 tbl, 5 ex

FIELD: textile, paper.

SUBSTANCE: polypropylene thread produced by cutting of extruded film is exposed to unbalance low-temperature plasma of high-frequency capacitance discharge in a vacuum chamber for 180±1 s at the anode voltage from 2.5 to 4.5±0.1 kV, current force at the anode from 0.3 to 0.6±0.05 A, working pressure of 26.6±0.1 Pa, consumption rate of 0.04±0.005 g/s of mixture of plasma-producing gases argon and propane-butane in the ratio of 70% to 30%.

EFFECT: increased quality of polypropylene threads by improvement of physical-mechanical properties.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: composition for fire-proof treatment of synthetic fibres contains the following in pts. wt: methylphosphite borate 20.0-35.0, water 65.0-100.0, ammonia 15.0-25.0, polyacrylamide 15.0-25.0 and potassium persulphate 0.5-1.5.

EFFECT: high fire-resistance, strength, resistance to thermal-oxidative decomposition and endowing synthetic fibre with high strength of binding with isoprene rubber.

2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: method involves drawing an polyethylene terephthalate article in an adsorption-active liquid medium containing modifying additives, and drying the article in air until complete removal of the solvent. The modifying additive is a biocidal preparation or antipyrene. The polymer article with an extended shape used can be a fibre, a film, a tape, a tube or a rod.

EFFECT: invention simplifies the technology of making polyethylene terephthalate articles with good biocidal properties and low combustibility compared to existing articles.

20 cl, 2 dwg

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