The method of transfer of the image on the textile material and canvas media image
(57) Abstract:Purpose: receive pattern on fabric thermal transfer dye. The essence of the invention: method of transfer of the image on the textile material of natural fibers or mixtures with synthetic fiber is a continuous transfer of picture printed on canvas carrier, on the wetted textile material, by contact between one or more pairs of rollers at ambient temperature and feed rate of the material and media, up to 50 m/min Using printing inks on the basis of acid, direct or active dye. 2 s and 5 C.p. f-crystals. 3 Il. The invention relates to a method of the type defined in the restrictive part of paragraph 1 of the formula decal or making a conversion figure to wet the fabric, which is completely or mainly consists of natural and/or synthetic fibers, mainly on the basis of cellulose. A small part of the material may consist of synthetic fibers. Under the decal should be understood continuous transfer in advance of the engraved image with canvas carrier image on a textile fabric, both paintings Sasi or more pairs of pressure rollers. Also the invention concerns a device and a cloth-media figure to implement the method.Decalcomania is a method of manufacturing a transfer image, which is known for a very long time, and it is widely used in industry especially in the last fifty years, in particular as a way of sublimation transfer image on a textile fabric consisting of synthetic fibres, and it has the advantage in comparison with the method of direct printing on textiles that production can easily be switched to manufacturing other drawings, so the supply of goods with different designs, you can limit the true need, while direct printing fabric manufacturer must produce a sufficiently large number of goods with separate drawings, spending to the length of stuffed cloth were at a reasonable level.Another advantage of the method of manufacturing a transfer images is that you can get a reasonably clear and detailed image transfer, which was stamped by the appropriate dye, and with the required degree of accuracy and precision on the appropriate canvas media figure.For these reasons, calcomania prenosnych images on textile cloths of synthetic and/or natural fibers by wet transfer image with canvas carrier image on the textile fabric during contact of both pieces, for example, by passing them through rollers is known from the patent Denmark N 5666/68, however, in these methods, use the media image of the paper fibers which have the same structure as that of the cotton, or paper with sizing organosilicon compounds with which the dye has poor or no affinity. The transfer, which occurs at very small pressure requires considerable heating to a temperature of about 80-300oC, and the usual time of contact between 90 C. and 5 minutes To reduce the time of contact you want to add the dye in the organic solvent or white spirit. However, even at lower time, this method is periodic. The same can be said about the method described in patent Denmark N 1566/69, which requires a contact time of 20-22 C. and the temperature of at least 100oC. the Dye mix in the pasta water-based, may contain an organic solvent. If the described method is performed continuously, the imprint will be unclear and therefore the results will be unacceptable. A similar method is known from the patent Sweden N 137674, which, however, requires the use of as cloth-media image of the paper web, covered, nuprime has no affinity with such a coating. In addition, we apply paints solvent-based, having a high content of white spirit and a way of translating the image is performed with the use of high pressure and heat. Collectively, this method includes many elements that are now invalid for use with decal, if only for environmental reasons.All these known continuous methods of making portable imaging is usually performed with the use of elevated temperatures and/or paints solvent-based, and in most cases there are special requirements for the type of band to media images.For example, in the United Kingdom patent N 1430831 described a method of manufacturing a portable image held in the chamber of the transfer under high pressure at temperatures above 100oC thus formed phase saturated steam, which allows you to transfer possibly colored layer with a temporary substrate on textile fabric. In the United Kingdom patent N 1480328 describes a method for conversion of images on webs of natural fibers with the use of high pressure, and this method can be done with or without heat treatment is built in a binder. However, carrying out this method without heating requires the presence of a solvent, which is added immediately before the transfer, or it is present on the canvas, and the media image in the form of microcapsules together with microcapsules containing dye.In patents France N 1034816 and 1036510 described methods and procurement transferable images on the moistened cotton fabric with a paper web, which has caused water-soluble or dispersed in water dyes and removable substrate. According to the first patent water-soluble dye dispersed in the fat, put on paper. In the other above-mentioned patent specified that the fat can be vaseline, paraffin wax, animal or vegetable oil or a mixture thereof with a resin. In both cases, the transfer is carried out with application of heat, or rather, if 50-180oC.Many other publications relates to manufacturing methods of transfer images with application of heat and/or paints solvent-based. These publications include the United Kingdom patent N 2008625, U.S. patent N 4155292; European application N 0018708, patents great Britain N 1491799, 1455292 and 1227271 and patent Sweden N 409125.In addition, U.S. patent N 4057864 described continuous and high pressure, created all 9 of pressure rollers rotating against the heated calender and cylinder. According to patent EP, N 0001168 and 0032247 when conducting continuous method is also used elevated temperatures (80-120oC).In U.S. patent N 1651470 and 1783606 mentions the possibility of transfer method without heating, but in the way described in the first patent, the contact time is 1 minute or more, i.e., this method is intermittent, and in the latter use solvents for dyes, preferably 50% aqueous acetone.In the U.S. patents N 19655257 and 1993524 described continuous methods carried out at relatively high performance and low contact time. In addition, as the carrier of an image you can use plain paper. However, the drawback of these methods is that it consumes a relatively large number of solvents and that the transfer should be carried out at high temperatures (approximately 200oF, i.e., about 93oC).Finally, in patents Denmark N 2710158 and 2702300 described wet methods of making portable images that use the migration properties of the used dyes, under the action of heat is usually 100-120oC.the material predetermined natural fibers or mixtures with synthetic fibers by treatment with a moisturizing solution followed by contacting with a carrier, consisting of paper coated with printing ink, at a pressure of 0.7 kg/cm2and a temperature of 80-120oC for 10 minutes (patent Germany N 2122805). However, the known method involves the use of heat, relatively low pressure and a prolonged time of contact, which makes it impossible for a continuous process.Now it was found that the production of transfer images can be performed on the fabric, which is completely or mainly consists of natural fibers, mainly from cotton and/or synthetic fibers based on cellulose, without the application of heat during the image transfer, and apply soluble or dispersed in water dyes.Thus, excluded environmental problems associated with the use of organic solvents, and these problems are generated mainly when applied heat.The method is economical from the standpoint of power consumption, since the image transfer heat is not required, and the use of comparatively thin paper web as the carrier image gives an economic advantage.All part of paragraph 1.According to the way the media image can be paper canvas or material paper type, more precisely coated paper having air permeability of 0.1 to 3000 nm./Pas, especially 0.5 to 1 nm/Pass and the water absorption capacity corresponding to the number of Cobb lower than 50, preferably about 25. The paper is preferably coated with carboxymethylcellulose (CMC), alginate or a water dispersion of polyethylene or polyacrylate.On the paper web fill drawing with the use of one or more soluble or dispersed in water dyes that are mixed with easily soluble substance. This substance acts as a paint thickener and as a carrier or a temporary binder for the dye on the paper, as well as a reactive component for the corresponding connection moistened textile fabric with the paper on which the drawing. Finally, the substance ensures that both paintings will not be commingled with respect to each other during transfer of the image.Examples of water-soluble dyes include substantive, cationic, acid dyes, the dyes on the basis of the complex chromium compounds and reactive dyes. Disele.The true transfer pattern on textile fabric that has been pre-soaked (adjustable humidity) is achieved because the textile fabric in the hot zone is compressed together with canvas carrier image under the appropriate high line pressure and the high pressure textile fabric is compressed to a reduced thickness at a very short distance and then naturally expands, thus drawing effectively tolerated with canvas carrier image on the textile fabric. This entire process takes place without the application of heat regardless of the type of fiber and the dye.Examples of fibers that can be subjected to a decal method according to the invention, includes natural fibers, e.g. cotton, hemp, jute, flax and other vegetable fibers, and wool and silk. You can also use artificial fibers based on cellulose, for example, viscose fibers.A small part of the material may be synthetic fibers, e.g. polyester, polyamide or polyacrylic.For example, the method according to the invention is carried out in a device containing a sealing calender is PDR contains a liquid bath, through which the moving textile fabric to wetting, and clamp with gasket for removal of excess fluid at a specific pressure and achieve a controlled moisture content in the fabric or on it.Moisture absorption depends on the quality of the fabric, additives in the water bath, the quantity of dye applied to the paper web, etc., In all cases, textile cloth moistened mainly water, but water can be added, for example, urea, which acts as a solvent for the dye and increases the phase of penetration of the dye, and you can also add the lye, which partly has the effect of swelling on cellulose fibres and partly the effect of dissolution of certain dyes, and its presence is necessary for fixing reactive dyes.In addition to the bathroom dyes can be mixed with the dye and/or pigment. It was found that during the subsequent transfer of the image to the desired figure you can get on the painted textile fabric without penetrating the soil and dye from one layer to another.After the controlled displacement of fluid to obtain the desired moisture content is MD media image. Directly before joining the cloth can be moistened by passing it through a light moist fog preferably pure water so that the reaction swelling in the deposited layer of paint and therefore the transfer of ink flowed rapidly. Both paintings passed together through a pair of rolls, where they experience the action of a linear pressure of 50 kg/see United canvases you can also skip on through another pair of rolls at the proper pressure.Usually, the speed will be 10-20 m/min or more, but not exceeding 50 m/min. So true contact time will be approximately 0.1 s at a speed of 10 m/min.After the pattern is transferred to the textile fabric, the dye is fixed in a known manner depending on the applied dye.As mentioned, the painting media of drawing fill soluble or dispersible in water, the dye is mixed with easily soluble carrier. An appropriate material for this purpose is carboxymethylcellulose (CMC), preferably carboxymethyl cellulose low viscosity, which can be mixed with synthetic thickeners and/or other additives.In Fig. 1 p the see, showing in detail the area around the two pairs of rolls, where the transfer pattern; and Fig. 3 - show the calender with a gasket for the initial wetting and possible primer dyeing textile fabrics and then join it together with canvas carrier image.In the apparatus shown in Fig. 1, textile fabric 2 from natural fibers, possibly mixed with artificial or synthetic fibers, is introduced into the calender 4 gasket, in which the canvas 2 is immersed in the liquid bath may contain the dye bath.When textile fabric passes through a pair of wringer rolls 8 and 10, it removes a large amount of water contained in it, so that the painting has thoroughly certain residual amount of moisture, which is typically 50 to 80% of the Pressure between the rollers 8,10 is linear, and it reached 50 kg/see what is Decisive is that the textile fabric 2 keeps the pair of rollers 8, 10 with carefully controlled residual moisture, which is determined in each case depending on the type of textile fabric 2 and working conditions.Then the blade 2 is combined with canvas, 18 media rice 17, which in combination form a transfer zone 12. Each of the two pairs of rolls creates a linear pressure of about 50 kg/cm the speed of the moving web is usually 10-20 m/min, but it can be equal to 50 m/min.On the first pair of rolls 14, 16 removes some moisture from the textile fabric, which is then hydrated layer of paint on the canvas, and the media figure and therefore the media to paint. Thus the carrier is activated (swells) so that the dye fills (or penetrating into the micropores of the fibers very quickly within a few fractions of a second.This effect is enhanced in that the wet fiber is first compressed and then (when the leaves capture) absorbs the dye and the media. This effect is amplified in the second pair of rolls and the transfer of dye and binder is then terminated. In practice tolerated by more than 75% of the dye. Both paintings are separated after passing through a pair of rolls 15, 17 and webs of paper wound on a receiving cylinder 22.Textile fabric 2 may continue to pass through the stage 25 further processing, where it is possible to apply a known manner material for further processing in the form of an aqueous solution, paste or foam for ulwa textiles material.After stage 25 further processing textile fabric may be, for example, in the dryer 28 for drying and condensation, where it is first dried to remove residual moisture and then condensed, i.e. thermosealed in the same process, thus the dye and possibly the agent used for further processing fully react, so this improvement is achieved stability and properties. Drying and condensation can also be carried out in two stages, i.e., two stages in one drying oven.The applied temperature depends on the type of dye and composition of agent for processing, and performance, length and heat of the dryer. Dyes printed on the textile fabric, you can also pin in the vapor phase or by other known methods.At the end, the textile fabric can pass through the system (not shown) of the washing, which removes any residual chemicals.Fig. 2 shows in more detail the movement of cloths 2 and 18 through a pair of wringer rollers in the area of drawing. It is shown that the coating 30 of the above-mentioned mixture of dyes printed on canvas 18 media and also shows how textile SS="ptx2">In the shaded area 32, shown in an enlarged scale, produces a certain amount of free fluid, which is displaced from wet canvas 2 pair of rolls. This fluid activates the media contained in the coating 30 of the packing, thus the dye contained therein, together with the substance of the media will be engraved on the surface of the textile fabric 2 fabric shrinks considerably. After the two paintings will leave a couple of rolls 14, 16, they are on another pair of rolls 15, 17, as described, and then the two paintings 2 and 18 again separated. Now the canvas 2 has moved figure 36.Finally, Fig.3 shows another possible variant of the method, in which the initial regulation of moisture in the fabric 2, the connection of the textile fabric 2 fabric 18 media figure and the true transfer drawing is in the same system of rolls. After passing through the liquid bath 6 moistened textile fabric 2 passes through the clamps 8 and 10, the mutual pressure which regulates the moisture content. Canvas 18 media image unwound from the roll 20 and connects with the canvas 2 between the rollers 10 and 14. Education transition images is a two Etap picture wound on the roll 22, while the textile fabric 2 with a printed pattern is transferred to the subsequent processing.Example 1. According to the invention a method of manufacturing a transferable image is performed with pre-bleached cotton cloth of a weight of approximately 200 g/m2. Apply the paste for stuffing fabric has the following composition, g:
Substantive dye, for example,
Jndosol Blau SP-GL 20
Sodium carboxymethylcellulose 100
Synthetic thickener 20
Demineralized water up to 1000 g
Paste for stuffing put randomly on the paper web on the machine type, which is usually used for the manufacture of transferable images on paper and for direct printing of textile materials. Paper with a printed pattern is dried at a temperature of about 100oC and it can then be stored within 6-24 months depending on storage conditions.For image transfer textile fabric is wetted, for example, in the calender with a gasket containing demineralized water, possibly mixed with an agent to fix the dye. When you want a colored primer, liquid may contain p is CNA liquid is removed between a pair of rolls, so the moisture content in the fabric is 75 to 80%
Moistened thus textile fabric and canvas media image link on the first pair of rolls at a linear pressure of 40 to 45 kg/cm, and then the United canvases pass through the second grip rollers with a corresponding linear pressure. Immediately thereafter the paper web (which is now wound) and the textile fabric are separated. The latter, now transferred color pattern fabric passes for drying and fixation in the dryer, in which the dye and maybe added a retainer fixed in one or two passes at 170-180oafter 30 seconds, or for about 1 min at 130oC. Subsequent washing can be eliminated.The resulting color cotton fiber is fine and uniform with sharp contours and a good stability during washing, similar to that which is normally reached when the dyeing or printing is performed with a single dye.Example 2. In this example, the printing pattern on a woven fabric made of cotton and polyester 66/33; weight about 250 g/m2apply pigment dye. The paste is used for printing, has the following composition:
th thickener, Carrier 925 20
Demineralized water up to 1000 g
This paste stuff on the paper web or a material similar to paper as described in example 1. The paper coated with the paste is dried at 100oC and it can then be stored within 6-24 months depending on storage conditions.Textile cloth moistened by spraying an aqueous solution consisting of a synthetic thickener, binder, for example based on acrylate and/or melamine, additional fixing agent, weakly-basic, for example, ammonia water, demineralized water, a coloring agent, for example, Pigmatex yellow 2 Gl/60458 and possible additives. When you want a white background, pigment dye is excluded. Moisture absorption is adjustable up to 80%
The painted pattern is cut on textile fabric, as shown in example 1. Line pressure on both pairs of rollers is 42 kg/seeImmediately after production of transferable image, you can make subsequent surface treatment by applying a paste water-based or foam, for example, containing a small amount of binder, catalyst, additional fixing agent and plasticizer.Still humid is for one or two passes, as indicated in example 1.The obtained textile material is gentle with uniform gasket and good resistance to washing, and it is well suited, for example, for finishing fabrics.Example 3. The gasket transferable drawing exercise on a knitted piece of cotton (225 g/m2or a simple Jersey (160 g/m2). Both of these material must be carefully pre-treat for stuffing pattern and perhaps mercerized and glued around the edges. The gasket do with two-tone pattern.Paste for stuffing 1, g:
Reactive dye, for example, Remazol Red RB 50
Buffer solution (to pH 6,0-6,5) 1-2
Natural thickener, such as Na-CMC 80
Sodium alginate NV from CHT 12
Demineralized water up to 1000
Paste for stuffing 2:
reactive dye, for example, Remazol Druckmarineblau RR 80
Buffer solution (pH=6,0-6,5) 1-2
Natural thickener, for example, Na-SMS 75
Sodium alginate NV from CHT 12
Demineralizovannaja water up to 1000
Paste for printing is applied on the paper web in the form of any figure, as indicated in example 1. Drying is carried out at 15 what okladki demineralized water, containing not more than 10 wt. urea and a small amount alginate sodium, caustic soda and sodium carbonate or sodium bicarbonate as additives. After wetting textile fabric squeezed to a moisture content of 75%
The transfer of dye from a fabric carrier pattern occurs in the above-mentioned two pairs of rolls at a linear pressure of 40 and 42 kg/cm, respectively. Speed of about 15 m/minThen textile fabric with a transferred pattern is dried and fixed heat setting in the dryer with hot air (150oC for 3 min, or at 175oC for 1.5 min).After finishing textile fabrics achieved a degree of subtlety, which is almost as good as with the straight stuff. Additionally, the fabric becomes soft and with a pleasant finish.Example 4. On viscose knitted product (approximately 300 g/m2) must be applied two-tone pattern. Knitted product to be pre-processed and glued along the edge in a known manner to facilitate passage through the system of drawing. Two pastes for printing have the following composition:
Pasta 1 for stuffing:
reactive dye, for example, Drimarene rot R-4BL 25
Passy is NV from CHT 15
Demineralized water up to 1000
Pasta 2 for stuffing:
Reactive dye, for example, Drumarene
violet R-2RL 40
Buffer solution (pH 6.5) 1-2
Na-CMC low viscosity 90
Sodium alginate NV from CHT 15
Demineralized water up to 1000
As mentioned on a paper canvas print the selected picture and it can then be stored.Textile cloth moisten with cleaner application of the dye described below in the calender gasket with a minimum yield strength of the fluid to 65% absorption of the liquid, g:
NaOH solution (38oVe') 4-8
Sodium alginate 3-5
Demineralized water up to 1000
The transfer pattern is achieved when passing through the two pairs of rolls, as shown. Line pressure is equal to 40 and 50 kg/cm, respectively.Knitted fabric with a transferred pattern is fixed in a figurative calender, which instead of the usual fiber for the device is impervious to steam media (possibly coated with Teflon), which, while rotating around a heated cylinder with a damp textile forms a narrow slit for Pahad on fixing is increased by 20% Then the knitted product is processed in a known manner.In General, the fixing of the dye applied in accordance with the invention, can be achieved in different ways depending on the type of dye supported on a carrier, and the type of machines. Depending on the selected method of fixing can be changed additives introduced into the bath of dye. In the case of the use of the reactive dyes used in examples 3 and 4, you can: 1) moisten textile fabric demineralized water, possibly mixed with urea and after transfer of dye only dry textile fabric at a temperature of about 110oC; 2) to moisten textile fabric and then fix the dye in the vapor phase, for example, at 102oC for 3-8 min; 3) to pass in a bath of dye to transfer dye to dry textile fabric at approximately 120oC and then treated textile fabric with full figure strongly alkaline salt liquid and leave it to rotate within 2-24 h or 4) skip NaOH in a bath of dye, it is possible to mix a large amount of thickener and after the transfer of the dye to immerse the textile fabric in an alkaline salt bath (95-100oC). Then textile fabric is washed and separated in a known manner.Coloring paste for stuffing wool and silk may have the same composition as in example 3.When painting media figure has a colour picture, the latter is transferred to the textile fabric, which is made, for example, made of wool (washed and chlorinated), prepared for stuffing. Before the transfer of the pattern textile cloth moistened with liquid having the following composition, g:
The thickener, for example SNT alginate NV 10
Antifoaming additive 1
Wetting agent 5-25
Glacial acetic acid To pH 4
Demineralized water Up to 1000
After connecting together the fabric of the medium of drawing and wet textile fabrics in portable to calenders under pressure of about 40 kg/cm, the dye is fixed in terms of a pair of slightly modified calender described in example 4 at a temperature of about 100oC or the usual BS="ptx2">Plussa liquid for fixing dyes on silk differs only slightly from the liquid used for the fixation of dye on wool. Here also the composition of the liquid depends on the type of dyes and this fixing device. Thus textile fabric with a transferred pattern is processed by a method known to direct the packing of such tissue. It turns evenly filled textile fabric with a good level of resistance.Example 6. According to the invention a gasket carried out on woven silk, which has a weight of 90 g/m2and pre-processed for printing.For printing pattern apply the following color pasta, g:
Acid dye (Sandolan turkisblau G) 65
Antifoaming additive 1-2
Ambergum (22) (SMS-low viscosity) 150
SNT alginate NV 15
Water Up to 1000
The apparent viscosity of 3000 centipoise. Instead of carboxymethylcellulose (CMC) can be used 50 g polietilenglikoli ether 6000 (the value of H<B 15) and perhaps 10 g butter for printing.Plussa liquid:
The thickener, for example, SNT Alginate
Alginate SNT 10
Antifoaming additive 1-2
Wetting agent 1-2
Canvas media figure, stuffed mentioned color paste can also be used for printing pattern on the coat, perhaps mixed with silk or polyamide textile fabrics, solely consisting of polyamide, which is a synthetic fiber. Here also it is recommended to fasten the ferry full of fabric.Textile fabric with full pattern is separated by a method known to direct the packing of fibers of the same type. The level of resistance can be fully compared with the level of resistance of fabrics with direct gasket.Example 7. For printing pattern cotton knitted fabric (180 l/m2prepared for stuffing, use the following paste:
Direct dye, for example, Indosol purple SF B2207 15
Antifoaming additive 1-2
Thickener (krahmalevym ether with a high degree of esterification, relatively low viscosity and a high potential for re-hydration)
Demineralized water Up to 1000 g
The apparent viscosity of 3000 centipoise.This color E media on canvas textile fabric and finishing textile fabrics do as described in example 1.Example 8.On woven cotton fabric having a weight of 250 g/m2and pre-processed for printing and mercerized, transfer drawing method according to the invention.For printing on the paper web used the following color pasta, g:
Reactive dye (Solidazol gelb PG) 50
Buffer solution, pH=6,0-6,5 1-2
Antifoaming additive 1-2
Additive for printing (oil) 10
Polietilenglikolya ether 6000 (for example, the emulsifier with DMR value HLB=18) 50
Demineralized water Up to 1000
The apparent viscosity of 3000 centipoise.After wetting a textile fabric on it is transferred pattern as described in example 3. 1. The method of transfer of the image on the textile material of natural fibers or mixtures with synthetic fibers by treatment with a wetting solution, followed by contacting with a carrier consisting of paper coated with printing ink, under pressure, characterized in that as the carrier uses paper having air permeability of 0.5 to 3000 nm/PA s and the absorption corresponding to the number of Cobb below 50 coated on decarboxylase, polietilenglikolya ether with the value of the hydrophilic-lipophilic balance greater than 15, with thickening properties, and the contacts are between one pair or several pairs of rollers at ambient temperature and feed rate of the material and media, up to 50 m/min.2. The method according to p. 1, characterized in that the wetting solution is injected dissolved or dispersed dye.3. The method according to p. 1, characterized in that the contacting is carried out at a pressure of 50 kg/cm2.4. The method according to p. 1, characterized in that when the ink on the basis of a direct dye as a wetting solution using demineralized water.5. The method according to p. 1, characterized in that when using a cellulose-containing textile material and the printing inks on the basis of active dye as a wetting solution using demineralized water containing 50 g/l of urea, 3-5 g/l of sodium alginate, 4-8 g/l of alkali and 2-4 g/l of sodium carbonate.6. The method according to p. 1, characterized in that when using textile materials of protein fibres and printing inks based on acidic or active dye as with the 1-25 g/l of wetting agent and acetic acid to a pH of 4-4 .5.7. Canvas carrier image to transfer a color image on a textile material consisting of paper coated with printing ink, characterized in that it consists of paper with a permeability of 0.1 to 3000 nm/PA*s and the absorption corresponding to the number of Cobb below 50, and printing inks based on water-soluble or disperse dye and a binder selected from the group of: carboxymethylcellulose, polietilenglikolya ether with the value of the hydrophilic-lipophilic balance greater than 15, with thickening properties, taken in the quantity of 75-100 g/l of printing ink.
SUBSTANCE: invention relates to thermal printing and relates to a device and method of thermal printing an image from the intermediate sheet for thermal transfer to the product. The device comprises a heating means made with the ability to feed the flow of heated gas for dye transfer. Also, the device comprises a unit of oscillating blades to direct the heated gas in a direction transverse to the flow direction for distribution of heated gas on the product during the dye transfer.
EFFECT: invention provides uniform heating of the product and the sheet due to oscillating air distribution, which generally improves thermal printing.
14 cl, 6 dwg, 4 tbl, 2 ex
FIELD: printing industry.
SUBSTANCE: invention relates to a technology of a process of image transfer to different surfaces of items made of different materials. The method includes transfer of an image with display to a monitor connected to a computer. Image processing in a computer, printer output. Sending fragments or layers of an image to a printer for printing onto a carrier and transfer of a pigment onto produced fragments or layers of the carrier with the help of a foil applying device with a colour metallised, holographic or simple pigment foil. Afterwards an image is transferred to the surface, at the same time the image is processed in a PC by division of the image into fragments or layers complying with colour fragments of the image (colour separation). To produce the image on the surface, produced colour fragments or carrier layers are transferred with previously transferred pigment and foil with pigment remains, produced during transfer of the pigment from foil to the carrier or foil with the remaining pigment produced as the pigment is transferred from the foil to the carrier.
EFFECT: method makes it possible to apply an image of any size on every possible surface and with high resolution.
FIELD: printing industry.
SUBSTANCE: invention relates to thermal printing and refers to a device for thermal printing of image from the transfer sheet on the product, and the method of printing the image from the transfer sheet for heat transfer on three-dimensional product. At the same time the device is adapted to print on three-dimensional products and comprises heating means adapted to supply hot gas with a variable flow rate.
EFFECT: proposed invention provides various heating rate of the material, without causing the undesired distortion.
12 cl, 6 dwg, 4 tbl, 2 ex
FIELD: physical method for leather staining.
SUBSTANCE: claimed simplified method includes spraying of dyeing composition, containing (mass %): diphenylamine 0.3-2.0; tetrabromomethan 5.0-10.0; α-naphthol 0.01-0.03; and balance: methyl methacrylate-based varnish, onto the leather face, followed by ultraviolet exposure with wave-length of 300-400 nm at 25-300C for 0.5-1.0 min. Ferrocene and/or indole may be added in dyeing composition to complete color variety.
EFFECT: leather with improved hydrophobicity and physicochemical resistance.
2 cl, 2 tbl, 3 ex
FIELD: production of painted optically transparent polymeric films used in microelectronics, quantum electronics and opto-electronics.
SUBSTANCE: method for adding dye to polymers comprises steps of drawing polymer in adsorption-active liquid medium containing dissolved dye; further drying of polymer and annealing it; using as polymer non-oriented polymeric film of amorphous polymer; annealing polymer in temperature range beginning from temperature of polymer vitrifying till temperature of chemical decomposition of polymer with dye. Polymer is dried and annealed without holding it in tensioned state in direction of drawing.
EFFECT: possibility of realizing simplified process for producing optically transparent painted polymeric films.
FIELD: polymer materials.
SUBSTANCE: invention relates to technology of modifying polymer materials and can be used in technology of finishing polymer materials. Invention provides process and composition for dyeing and texturing polymer surface, which resides in that polymer surface, preferably based on polyethylene-polyamine-hardened dian epoxide resin, is coated with composition of exothermic mixture of organic compound powders containing bensenesulfonic acid chloroamide sodium salt trihydrate (chloramine B) and 8-hydroxyquinoline taken in molar ratio (0.25-3.0):1, respectively. Mixture is then locally initiated and components react in a mode of wave self-propagating high-temperature synthesis.
EFFECT: reduced polymer surface modification time, avoided use of organic solvents, simplified equipment, and enabled obtaining homogenous or spectrum-gradient intensive color, resistant to light and atmospheric effects.
5 cl, 2 tbl, 8 ex
FIELD: dye-finishing production.
SUBSTANCE: the present innovation deals with delivering dyeing composition heated up to about 35-40°C into the tank with ultrasound emitter at frequency being 104-106 Hz followed by the impact upon it for the period of about 1-5 min; guiding it into the tank for dyeing supplied with ultrasound emitter at frequency ranged 104-106 Hz with a substrate located in it, which was pre-subjected for ultrasound impact in this tank in the mentioned frequency range; availability of a substrate in the mentioned activated dyeing composition at excessive pressure of about 0.5-1.0 atm for the period of about 3-15 min followed by washing with water subjected to ultrasound impact in the tank for water activation in frequencies ranged 104-106 Hz followed by drying. Waster water should be guided into the tank for water purification supplied with ultrasound emitter at frequency being 104-106 Hz at excessive pressure ranged 2.5-5.0 atm with subsequent return of the purified water into the cycle of dyeing process. The innovation provides intensification of dyeing process and shortened expenses of dyestuff and supplementary substances.
EFFECT: higher efficiency.
5 dwg, 1 ex
FIELD: textiles, paper.
SUBSTANCE: invention is related to the field of dyeing-finishing production, namely to steam-phase dyeing of textile materials or natural suede. Proposed method of dyeing includes generation of unsaturated vapors of dye in process of dye evaporation in combination with thermoplastic polymer with their mass ratio of 1:3-1:5 at the temperature of 250-600°C and pressure of 5-10-4 - 5-10-7 mm of mercury column and simultaneous dyeing in mixture of generated dye vapors and thermoplastic polymer.
EFFECT: method makes it possible to improve extent of dye fixation on material with preservation of material physical and mechanical properties due to elimination of undesirable structural changes of polymer material in process of steam-phase dyeing.
1 cl, 2 tbl, 23 ex
FIELD: textiles, paper.
SUBSTANCE: invention is related to the field of polymer materials dyeing technology with application of waves of various physical nature. Device is described for continuous dyeing of polymer materials, including spray-apparatuses for dyeing and reservoirs of ultrasonic, electromagnet-acoustic and hydroacoustic activation of waves, excessive static pressure and intense hydrodynamic field.
EFFECT: proposed device provides for reduction of dyeing composition consumption, reduced time of dyeing, fixation of dye on material and drying, and also efficient treatment of drainage water from suspended matter and colloid particles by a relatively simple method and possibility of its reuse in production.
1 cl, 7 dwg, 1 ex
SUBSTANCE: described is a method of recording information on polymers through thermal action on a polymer, involving local thermal processing of a polymer at temperature below its glass transition point. The polymer used is a polymer object with a prolate form (film, fibre, tape, pipe, rod), made from plasticised or unplasticised, amorphous or amorphous-crystalline polymer, initially subjected to stretching in a adsorption-active medium from alcohols at temperature below glass transition point of the polymer, and then treated with a solution of non-thermochromic dye selected from a group comprising Rhodamine 6G, methyl green and methylene blue at temperature below glass transition point of the polymer and drying at temperature below glass transition point of the polymer.
EFFECT: invention simplifies the method of recording information on polymers.
6 cl, 2 ex
FIELD: textile, paper, polymer fibre.
SUBSTANCE: invention refers to production of heat sensing devices on base of polymers and can be implemented for control over temperature in various industrial processes and in household use. Here is disclosed the procedure for production of heat sensing devices on base of polymers by means of polymer treatment with solution of dye; further polymer is dried at temperature below temperature of glass transition. As polymer there is used a polymer item of elongated shape, such as film, fibre, band, pipe, or rod, fabricated of plasticised or non-plasticised amorphous or amorphous-crystallised polymer drawn into adsorption active medium at temperature below temperature of polymer glass transition. As dye there is used not thermo-chromic dye chosen from a group including Rodamin 6 ZH, Methyl green and Methylene blue; also polymer is treated with dye solution at temperature below temperature of polymer glass forming.
EFFECT: facilitating simplified procedure for production of heat-sensing devices on base of polymers, expands range of implementation, also produced heat-sensing devices with irreversible mode of operation.
6 cl, 2 ex
SUBSTANCE: described is a method of making polymer-based temperature sensors by treating a polymer with a dye solution and subsequently carrying out operations over the polymer, which include drawing the polymer in an adsorption-active medium of an alcohol solution of a non-thermochromic dye selected tom a group comprising Rhodamine 6G, Methyl green and Methylene blue, at temperature lower than glass-transition point of the polymer, and drying the polymer at temperature lower than glass-transition point of the polymer. The polymer used is a prolate form polymer product - film, fibre, tape, pipe or rod, made from plasticised or non-plasticised, amorphous or amorphous-crystalline polymer.
EFFECT: invention simplifies the technique of making polymer-based temperature sensors and making temperature sensors whose effect has an irreversible character.
6 cl, 2 ex
FIELD: textile, paper.
SUBSTANCE: composition includes a (meth)acrylic oligomer, a photopolymerising (meth)acrylic monomer with more than one (meth)acrylic group, a photoinitiator, a non-ionogenic surfactant and a dying agent - a product of dye application - cation, direct, acid, active or disperse one at nanostructured particles of montmorillonite or montmorillonite modified with cationic surfactant, or a hydrotalcite. To reduce time of irradiation with UV light required for fixation, and to increase stability of dying, the composition may additionally include a coinitiator and a (meth)acrylic polymer, and also a defoaming agent to prevent foaming, when composition components are mixed. To improve dispersion of dyed nanostructured particles, the composition contains a non-ionogenic surfactant.
EFFECT: increased stability of dyed material to physical-chemical effects, reduced time of irradiation with UV light required for strong fixation of dying, and provision of additional colouristic effects by variation of both dye content on particles and content of dyed particles.
3 tbl, 38 ex