Dry glue for wallpaper
The invention relates to the field of dry powdered adhesives that can be used in household and construction for wallpapering on paper and fabric bases, and also for gluing paper Wallpaper on concrete, plaster, wood and other non-metallic surface. In addition, this adhesive is used for bonding of cardboard and paper. Dry glue for Wallpaper contains extrusion starch, antiseptic, extrusion flour, as an antiseptic, sodium salt tetraboric acid. The technical result of the invention is to improve the bonding strength of the Wallpaper with the surface of the walls and the reduction in the energy intensity of the manufacturing process of the adhesive. 3 table. The present invention relates to the field of dry powdered adhesives that can be used in household and construction for wallpapering on paper and fabric bases, and also for gluing paper Wallpaper on concrete, plaster, wood and other non-metallic surface.In addition, this adhesive is used for bonding paper and cardboard.Known dry glue for Wallpaper "CMC-N containing 90-92% polysaccharide carboxymethyl cellulose and 8-10% water (glue for racepath a lot of time dispersion of the adhesive in water: 12-24 hours. The adhesive has high alkalinity and the ability to penetrate through the paper-based, which significantly limits the scope of its application because of unfitness for the stickers are bright and white Wallpaper with bronze and aluminum paints. Apply glue "CMC-N leads to the formation on the Wallpaper dark spots, stripes greening metal pigments remaining on the Wallpaper after gluing and drying.Also the disadvantages of glue KMTS-N" can be attributed to the low strength of the adhesive joint to break.Known dry glue on THE 6-15-533-71 (Handbook of adhesives and adhesive mastics in construction. M.: stroiizdat, 1984, S. 188) containing wt. %: flour, not suitable for food purposes (or starch), 99, 1 antiseptic.The disadvantage of dry adhesive is a high hygroscopicity.In addition, the known adhesive characterized by low adhesion of the Wallpaper with the surface of the walls, which limits its scope because of unfitness for stickers varied in thickness Wallpaper. Another disadvantage of the adhesive is low strength of the adhesive joint to break.For the preparation of glue needed to implement a number of operations: thoroughly dry the glue with water, leave on for 12 Chania, without burning, cooling the obtained adhesive to room temperature. The duration and intensity of the process of making glue limits its use in new buildings due to the lack of necessary equipment and the impossibility of melting glue in under construction houses.The closest in technical essence and the achieved positive effects to the invention is glue fast food Wallpaper (see the description of the invention to the patent of the Russian Federation 2120953, MKI 6 C 09 J 103/00, publ. 27.10.98,, "Glue fast food Wallpaper"). Known adhesive for Wallpaper contains dry extrudate oxidized starch or flour obtained plugotarenko processing at a pressure of 1.5-2.5 MPa and a temperature of 160-180oWith over 30 mixture in a twin-screw extruder, comprising a starch or flour, antiseptic - carotid or sodium sorbate in an amount of 0.2% by weight of dry starch or flour and the oxidizing agent is calcium hypochlorite in an amount to provide 0,15-0,30% active chlorine on dry substance of the processed mixture, in the following ratio, wt. %: the extrudate oxidized starch or flour 8-10, water 92-90.A disadvantage of the known adhesive, selected as a prototype, is a low coloring strength the process of extruding the mixture.The technical result of the invention is to increase the bonding strength of the Wallpaper with the surface of the walls and the reduction in the energy intensity of the process of making glue.The technical result is achieved by the fact that the dry adhesive for Wallpaper containing extrusion starch and antiseptic, according to the invention further comprises extrusion flour, and as an antiseptic sodium salt tetraboric acid in the following ratio, wt.%: Extruded starch - 47,5-48,5 Extrusion flour - 47,5-48,5 Sodium salt tetraboric acid - 3-5 Proposed dry glue for Wallpaper is Pelkosenniemi powdery white material. Recipe of dry glue for Wallpaper selected from the conditions for enhancing the bonding strength of the Wallpaper with the surface of the walls and reduce the intensity of the process of making glue.Main ingredient - extrusion starch is manufactured in the following way: corn or potato starch was treated with a solution of monophosphate sodium based 2-10 wt. By weight of starch. The extrusion was carried out at 170-180oWith the number of revolutions of the auger 50 min-1the diameter of the outlet of 3.5 mm, the resulting extrudate was crushed in the crusher and about the s to avoid the formation of sludge and lumps, does not require swelling, irritating, resorptive and toxic effects on the skin, neutral colors of the Wallpaper.The content of the extruded starch, equal 47,5-to 48.5 wt.%, provides high bond strength and durability of adhesion of the Wallpaper.The inclusion of extruded flour, representing a white powder, manufactured in the following manner flour cereal crops was treated with a solution of monophosphate sodium based 2-10 wt by weight of starch. The extrusion was carried out at 170-180oWith the number of revolutions of the auger 50 min-1the diameter of the outlet of 3.5 mm, the resulting extrudate was ground in a hammer mill and sieved through a sieve with holes of 0.5 mm Obtained extrusion flour allows you to increase the viscosity of the finished adhesive, to provide him a good binder properties, neutrality ready solution to the colors of the Wallpaper.The content of the extrusion flour, equal 47,5-to 48.5 wt.%, selected terms and conditions homogeneous dispersion with optimal viscosity of 40-50 MPaC.Additive powder of sodium salt tetraboric acid (borax grade B) increases the stability of the finished adhesive, provides him with a good antiseptic properties, and resistance to D. theThe content of sodium salt tetraboric acid equal to 3-5 wt.%, selected from the conditions obtaining low adhesion properties of the glue solution, improving its performance on viscosity and strength of the adhesive joints, the optimal value of the factor solution pH of 5.7. Increased consumption of sodium salt tetraboric acid more than 5% results in glue dark color, undesirable increase in the factor solution pH. The reduction of the sodium salt tetraboric acid (less than 3%) does not provide the desired viscosity of the finished adhesive. The adhesive thus obtained liquid, quickly exfoliates and has a low bonding strength.To obtain the claimed powder glue successively added to the powder extrusion starch, taken in an amount of 47.5-48,5 weight. %, the moisture content of 15-25%, the extrusion flour in the amount of 47.5-48,5 weight. % and the moisture content of 15-25%, sodium salt tetraboric acid in the amount of 3-5 wt.%.All components having different faction, must be thoroughly mixed to obtain a homogeneous dry composition.Finished dry glue Packed in bags of polyethylene film or paper with a plastic coating on the EAST 6-15-90.2. The weight of one package of dry adhesive varies the th adhesive is filling enameled or plastic utensils with cold water, gradual falling asleep in it the contents of the package in the ratio of 5 liters of water, 400 grams of dry adhesive with continuous stirring until a homogeneous consistency.The obtained adhesive solution is ready to use and requires no swelling.The applicant conducted laboratory studies on the viscosity of the adhesive according to GOST 8420, clean the surface of the pasted wall-paper, adhesive ability, the strength of adhesion of the Wallpaper.To determine the viscosity was prepared with the adhesive, the viscosity of which was determined on the viscometer VZ-24 with the nozzle diameter of 4 mm according to GOST 9070 using a stopwatch with a multiplier of 0.2 C. by valid documentation. A measure of the viscosity of a 3% aqueous solution at 20oWith amounted to not less than 40 MPaC.To determine the purity of the surface of the pasted Wallpaper and adhesive capacity temperature 202oC and humidity of 60% was prepared adhesive solution on the newspaper strip, located on a wooden plate, glued paper samples on paper and fabric bases of different thickness and left to dry for 3 hours.Clean the surface of the glued samples was determined visually, considering about the tons of newsprint over the loose end of the Wallpaper and the subsequent separation of newspaper strips from wooden plates. Gap corresponded to the direction of fibers Wallpaper and paper.During the tests was identified high purity surface glued Wallpaper, no breaks adhesive on the seams of the Wallpaper of paper of different thickness.The applicant conducted laboratory studies of the strength of adhesion of the Wallpaper with the wall surfaces of the inventive adhesive and the resulting strength and burst strength as compared with adhesives selected as analogues, with glue, selected as a prototype, and with glue brand "classic Moment".The test procedure was as follows. The ends of the strips of fabric (calico) with an area of 2.5 x 5 cm smeared ready glue, connected the coated surfaces to each other and placed for 10 min under a weight of 2 kg Then the load was removed and glued samples were dried at room temperature for 24 hours. The dried samples were cut in the longitudinal direction into strips with a width of 1.5 cm and secured the ends of the strips, not smeared with glue, clamps. Then he made a break of the adhesive joint. When testing each of the adhesives produced six breaks of three received the highest results were used to determine average value of breaking strength, divided it by 1.5 and received strength at the margin in grams per line the Wallpaper has novelty and inventive step, as the search for sources of patent and scientific and technical documentation the applicant has not identified technical solutions, which would dry glue for Wallpaper contained in addition to the extrusion of starch and antiseptic advanced extrusion flour, and as an antiseptic - sodium salt tetraboric acid, in the following ratio, wt. %: Extruded starch - 47,5-48,5 Extrusion flour - 47,5-48,5 Sodium salt tetraboric acid - 3-5 Claimed dry glue is widely applicable in everyday life and the construction for wallpapering on paper and fabric bases, and also for gluing paper Wallpaper on concrete, plaster, wood and other non-metallic surface. Also, this adhesive is used for bonding paper and cardboard. Therefore, it meets the criterion of "industrial applicability".The claimed dry glue is made as follows. In extrusion of the starch in the amount of 47.5-48,5 weight. % add 47,5-8.5 weight. % extrusion flour, 3-5 weight. % dry powder of sodium salt tetraboric acid. The obtained dry mass is stirred in a special device to obtain a homogeneous composition. The degree of homogeneity of the obtained composition is not less than 97%.For cold water gradually fall asleep content 400 g packaging of dry glue, dissolved with continuous stirring.Extrusion starch, extruded flour and sodium salt Teterboro acids interact with water and with each other, forming a homogeneous light castelobranco mass, which is uniformly applied on the surface of the Wallpaper. Tack glue high. The drying time of the adhesive 2-2,5 hours. The shelf life of the diluted glue 2-10 days.An example of a specific implementation of the inventive dry glue for Wallpaper presented in table 2.Properties of the proposed dry Wallpaper glue and glue the prototype presented in table 3.We offer dry glue for Wallpaper provides compared to the prototype of improving the bonding strength of the Wallpaper with the surface of the walls 1.2 times, reducing the energy intensity of the manufacturing process of the adhesive.
ClaimsDry glue for Wallpaper, including extrusion starch, antiseptic, characterized in that it further comprises extrusion flour, and as an antiseptic - sodium salt tetraboric acid, in the following ratio, wt. %:
Extruded starch - 47,5-48,5
Extrusion flour - 47,5-48,5
Sodium salt tetraboric acid - 3-5
FIELD: adhesive composition, in particular adhesive paste for wallpaper.
SUBSTANCE: claimed composition contains flavoring agent releasing adhesive, component comprising of at least one flavoring agent, and at least one carrier. Composition is in dry form such as powder or granules and can be mixed with water. Moreover in odor-releasing component at least one flavoring agent is bond to carrier in such a manner that said flavoring agent in released from composition only after component contact with water. As carrier preferably cyclodextrin or derivatives thereof are used.
EFFECT: composition free from displeasing odor after blending with water.
7 cl, 1 ex
FIELD: production of the glue composition of labeling assignment.
SUBSTANCE: the invention is pertaining to production of the glue composition of labeling, in particular, to the glue composition designated for sticking of the glue impregnated-paper labels to the glass, plastic, metallic, ceramic and wood surfaces. The invention allows to produce the glue compositions, which are distinguished by the increased frost-resistance: withstanding the multiple freezing and defreezing. The composition is produced by combination of two compounds preliminary heat-treated at the temperature of 80-90°C and their subsequent heat treatment together with the modifying agent - Amylum at 90-95°C, and bring up to pH=7.0-7.5 IN by KOH or NaOH solution. At that the composition 1 contains: dextrin, gum-arabic pretreated at 130°C and under the residual pressure of 05 mmHg, water; the composition 2 contains: colophony, glycerin, borax, water. At that the first composition was thermotreated in presence of several drips of antifoaming liquid. The labels gain positive stability against a shearing within 10 seconds and after 5 minutes can be torn-off only with a break of the paper.
EFFECT: the invention ensures, that the labels gain positive stability against a shearing within 10 seconds and after 5 minutes can be torn-off only with a break of the paper.
1 tbl, 8 ex
FIELD: glue materials.
SUBSTANCE: invention relates to a method for preparing glue Stein hall with the high content of dry matter by using a single mixing capacity and comprising the following steps: 1) preparing a carrier by gluing the first part of starch in medium containing part of alkali necessary for preparing the glue; 2) diluting a carrier with water followed by addition of at least lesser part of the second part of starch; 3) addition of remaining part of the second part of starch and remaining part of alkali in diluted form that is necessary for preparing the glue. Addition of remaining the second part of starch and alkali is carried out in stages. Invention provides preparing the glue with the high content of dry and simplifying technology for its preparing.
EFFECT: improved preparing method.
10 cl, 2 ex
SUBSTANCE: composition contains carrier starch and secondary starch. The carrier starch contains (in terms of dry mass), less than 50% pre- gelatinised starch and has higher sensitivity to alkali than the secondary starch. The secondary starch is selected from a group comprising maize starch, potato starch, wheat starch and a mixture of two or more of the said types of starch. The carrier starch is selected from a group comprising wheat starch, potato starch, cassava starch, barley starch and a mixture of two or more of the said types of starch. The composition contains (in terms of dry mass) 0.5-60% carrier starch, 40-99.5% secondary starch and 1-8% alkali. The composition also contains (in terms of dry mass) 0.1-3.5% boron compound. An adhesive is obtained by adding the composition to water and stirring while adding a sufficient amount of alkali. The adhesive is used to make corrugated cardboard and multilayer materials. The advantage of the adhesive composition lies in that it can be easily prepared with low expenses on time and equipment.
EFFECT: use of the adhesive improves quality of cardboard, reduces adhesive consumption and increases rate of production.
25 cl, 6 tbl, 1 ex
SUBSTANCE: method involves depositing an adhesive system onto one or more pieces of wood-based material and joining one or more pieces with one or more additional pieces of the material. The adhesive system contains one component which contains starch, and another component which contains one or more polymers belonging to a group comprising polyvinyl amine, copolymers poly(vinyl alcohol-co-vinyl amine), poly(vinyl alcohol-co-vinyl formamide), polyallyl amine, polyethylene imine, polyamido amine and polyvinyl formamide. The two components are deposited on the wood-based material as unmixed separate components. The adhesive system further contains one or more polymers containing acetoacetylated polyvinyl alcohol.
EFFECT: use of the adhesive system enables to produce such wood-based products as boards based on chips, particles or fibres or boards based on aligned long chips.
19 cl, 1 tbl, 2 ex
SUBSTANCE: method involves applying a water-based adhesive composition which contains non-gelled starch and additionally 0.1-50 wt % of one or more polymers (P) having an amine group or an amide group onto one or more parts of wood-based material and joining the one or more parts with one or more additional parts of wood-based material.
EFFECT: high quality of gluing.
13 cl, 2 tbl, 5 ex
SUBSTANCE: invention relates to adhesive compositions, which are mainly applied in paper and cardboard industry, obtaining adhesive composition, to dry premix composition and method of its obtaining. Aqueous adhesive composition contains at least 7 and mot more than 30 wt % of adhesive component. Adhesive component includes at least one polyvinyl alcohol, and/or at least one dextrin, and/or at least one starch. Adhesive composition additionally includes carbomer and in case of necessity boron compound. PH of adhesive composition constitutes not more than 13.0. In case if starch and boron compound are present in adhesive composition, more than 91.0% of the total starch in composition are in form, non-soluble in cold water. In accordance with invention obtained are: solid dry premix, suitable as base for adhesive composition, and methods for obtaining solid dry premix or adhesive composition and product, in which all of them are used to form adhesive connection with substrate.
EFFECT: invention makes it possible to prepare adhesive composition, viscosity of which is easily predicted and regulated, which makes application of starch more effective, demonstrates Newtonian rheology, preferably in the process of corrugating.
22 cl, 7 dwg, 1 tbl, 9 ex
SUBSTANCE: invention relates to product based on bound mineral fibre, which is characterised by high fire-resistance according to category Class A1 documented in EN 13501-1 Standard, as well as improved resistance to decay, said product based on mineral fibre involves artificial glass fibre (AGF) bonded by hardened binder composition, wherein uncured binder composition contains (a) component based on sugar and either (b) polycarbonacid component and alkanolamine or (c) product of reaction between polycarbonacid component and alkanolamine, or (d) combination of (b) and (c), number of sugar-based component (a) ranges from 42 to 72 wt% per total weight of (dry substance) components of binder.
EFFECT: invention also relates to method of making said product.
17 cl, 1 tbl
FIELD: chemistry; construction.
SUBSTANCE: invention relates to an adhesive composition which does not contain formaldehyde, for mineral fibres, for sound-and/or heat insulation products based on mineral wool, particularly glass wool or rock wool, and to a method of producing sound-and/or heat-insulating product. Adhesive composition consists of at least one nonreducing sugar and ammonium sulphate in an amount of 3 to 20 wt% of total weight of mixture. Adhesive composition can additionally contain following additives: silane, in particular amino silane, oil, glycerol, silicone, "expander", and water.
EFFECT: invention enables to obtain products based on mineral wool, with improved resistance to ageing, in particular in moist environment.
8 cl, 1 dwg, 2 tbl, 22 ex
SUBSTANCE: aqueous dispersion of the polymer P comprises, wt %: ≥0.1 and ≤2.5 acrylic acid, methacrylic acid and/or itaconic acid (monomer A), ≥0.1 and ≤1.5 allyl methacrylate (monomer C), ≥0.1 and ≤5.0 N-methylolacrylamide and/or N-methylol methacrylamide, ≥25 and ≤69.7 n-butyl acrylate, and/or ethyl acrylate, ≥30 and ≤70 styrene (monomer F). The amounts of monomers A, C, D, E, F in total amount to 100 wt %. The aqueous binder formulation further comprises a saccharide compound S selected from hydroxypropylated potato starch, the amount thereof being such that it is ≥10 and ≤400 wt. parts per 100 wt. parts of the polymer of P. Total amount of the saccharide compound S is added to the aqueous dispersion of the polymer P. Method of producing a molded article from fibrous substrates, the use of an aqueous composition of a binder as a binder for fibrous substrates, non-cement coatings, sealants and adhesives and the use of a moulded article for the production of bituminous roofing cloths.
EFFECT: providing an aqueous dispersion of the polymerizer and an aqueous dispersion of the binder, by means of which it is possible to produce moulded articles with an improved transverse rupture force index at room temperature or reduced stretching at an elevated temperature.
17 cl, 1 tbl, 13 ex