CN103102864A - Hot-melting adhesive paste applied to addition type silicon rubber heat transfer printing, and preparation method of hot-melting adhesive paste - Google Patents
Hot-melting adhesive paste applied to addition type silicon rubber heat transfer printing, and preparation method of hot-melting adhesive paste Download PDFInfo
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- CN103102864A CN103102864A CN2012105916871A CN201210591687A CN103102864A CN 103102864 A CN103102864 A CN 103102864A CN 2012105916871 A CN2012105916871 A CN 2012105916871A CN 201210591687 A CN201210591687 A CN 201210591687A CN 103102864 A CN103102864 A CN 103102864A
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Abstract
The invention provides a hot-melting adhesive paste applied to addition type silicon rubber heat transfer printing, and a preparation method of the hot-melting adhesive paste. The hot-melting adhesive paste mainly comprises distilled water, polyacrylic acid, copolyamide hot-melting adhesive powder, sodium silicate powder and absolute ethyl alcohol. The preparation method comprises the following steps of: firstly, adding the polyacrylic acid and the copolyamide hot-melting adhesive powder into the distilled water to be prepared into a suspension with good dispersity; secondly, adding the sodium silicate powder into the distilled water, and dropwise adding the absolute ethyl alcohol so as to obtain a sodium silicate sol; and finally mixing the two solutions and preparing the copolyamide hot-melting adhesive paste. The size is uniform and stable and can have good interface bonding with silica gel, so that the size can be applied to silica gel heat transfer printing and has better application prospects in the field of silicon rubber textile printing.
Description
(1) technical field
The present invention relates to a kind of hot melt adhesive slurry for the hot transfer printing of addition-type silicon rubber, be mainly used in the fields such as printing in textiles.
(2) background technology
Hot transfer printing is a new typography, due to its have simple to operate, rapidly and efficiently, the advantage such as be beautifully printed, more and more paid close attention in the textile printing industry.Wherein, the hot transfer printing of printing ink is widely used.
Addition-type silicon rubber be the liquid silastic that contains vinyl be matrix, to contain the polysiloxane of Si-H key, be commonly called as containing hydrogen silicone oil, as linking agent (solidifying agent), under catalyst action, liquid silastic and containing hydrogen silicone oil generation addition reaction of silicon with hydrogen, thus be cross-linked into the solid elastomer of tridimensional network.Before addition-type silicon rubber sulfuration, the viscosity of sizing material is lower, is convenient to printing and pouring, and low molecule by product is emitted during sulfuration, and shrinking percentage is little, can degree of depth sulfuration.Simultaneously, the elastic body soft that obtains after sulfuration, transparent, and have good high temperature performance, can keep elasticity for a long time in-65 ~ 200 ℃ of temperature ranges.In addition, addition-type silicon rubber has good electric property and chemical stability, and water-fast, anti-ozone, anti-irradiation, weather-resistant, hydrophobic are moistureproof, shockproof, nonflammable, have physiology inertia, nontoxic, tasteless.Due to these advantages, addition-type silicon rubber in recent years, has also obtained paying close attention to widely in the printing in textiles field except being applied to the industry such as Electronic Packaging.Especially its good hand touch, the speciality such as environmental protection make it become high-end symbol in the stamp field.
In order to enhance productivity, produce in enormous quantities, the hot transfer technique of addition-type silicon rubber becomes the focus that industry is paid close attention to, due to the surface inertness of addition-type silicon rubber and the easy poisoning characteristics of platinum catalyst commonly used, make a lot of conventional hot melt adhesives be difficult to realize that the brute force between silica gel is combined, thereby cause stamp or pictorial trademark bonding force after transfer printing not firm, easily play the angle or repeatedly come off after washing.
In addition, present hot melt adhesive slurry adopts benzene class or organic solvent of ketone more, and as toluene, dimethylbenzene, pimelinketone etc., these solvents often taste are large, and are toxic, uses for a long time, all can cause certain injury for operator and environment.Therefore, exploitation is suitable for the aqueous, environmental protective hot melt adhesive slurry that addition-type silicon rubber is used, and just becomes the key of hot transfer technique.
In the technology of water-dispersion hot melt glue, Shanghai Aishibo Organosilicon Material Co., Ltd. adopts the auxiliary agents such as EVA mixing hot melt adhesive, tackifier, filler, silicone antifoam agent, organosilicon mould inhibitor, obtained to have the hot melt adhesive slurry of good distribution, can be applicable to foodstuffs industry and carry out hot-seal (application number: 200810037016.4).Sinopec Group adopts the components such as ethene-vinyl acetate polymerized emulsion, wax, organic boric acid ester, polyvalent alcohol, tensio-active agent, water, makes the good slurry of dispersing property and adhesive property.(application number: 201010535721.4).At present common water-based PU is the elastomericss that belong to more, are used for bonding footwear material.Except the EVA hot melt adhesive, the copolyamide hot melt adhesive that is obtained by the above nylon copolymerization of ternary has that fusing point is low, good fluidity, adhesive speed is fast, cohesive strength is large, and has good consistency with silica gel, has been widely used in apparel industry.
For copolyamide nylon powder is mixed with water paste, the technician has also carried out some researchs, such as adopting sodium polyacrylate as thickening material, can obtain the good hot melt rubber cement of viscosity, be suitable for smearing or embedding, but because the rubber cement wire drawing is oversize, and can't be applied to conventional silk screen printing, so in the printing in textiles field, the water-based copolyamide slurry that uses as slurry is still among exploitation is improved.
In addition, make solvent with water merely hot-melt adhesive granules is disperseed, because water is poor in the addition-type silicon rubber surface wettability, the hot melt adhesive slurry that is made into is difficult to uniform fold at silastic surface, local contraction starved phenomenon can occur after the water evaporation, be also a difficult point on printing technology.
(3) summary of the invention
Applicant of the present invention carries out the research that addition-type silicon rubber, inorganic silicic acid sodium tackiness agent and sol-gel process prepare the inorganic ceramic powder for a long time, to the surface adhesion modification of addition-type silicon rubber, and the dispersion that sol-gel method prepares inorganic powder and inorganic powder has deep understanding.In the hydrolysis of alkoxide system, crucial technology is exactly the gelation that forms uniform colloidal sol and colloidal sol.In the process of water as solvent dispersion copolyamide rubber powder granule, if can form colloidal sol shape slurry, be conducive to printing, and after later stage moisture evaporation, this sol system is transformed into gelling system, is conducive to film forming.More than consisted of the thinking of technical solution of the present invention.
The technical scheme that the present invention takes is:
A kind of hot melt adhesive slurry for the hot transfer printing of addition-type silicon rubber, described hot melt adhesive slurry is comprised of the component of following mass parts:
100 parts of deionized waters, polyacrylic acid 0.1-2 part, copolyamide hot-melt adhesive powder 15-40 part, sodium silicate 1-10 part, dehydrated alcohol 0.25-2.5 part.
Hot melt adhesive slurry of the present invention preferably is comprised of the component of following mass parts:
100 parts of deionized waters, 1 part of polyacrylic acid, 20 parts of copolyamide hot-melt adhesive powders, 5 parts of sodium silicates, 1.25 parts of dehydrated alcohols.
Copolyamide hot-melt adhesive powder of the present invention is business-like product, can buy to obtain on market.Described copolyamide hot-melt adhesive powder preferred size is distributed in 0-80 μ m.
Sodium silicate of the present invention is business-like product, and modulus is preferably at 1-3.
Hot melt adhesive slurry of the present invention can make by the following method: (1) gets each raw material by ratio of component, the polyacrylic acid of 0.1-2 mass parts is added in the water of 80 mass parts, be stirred to polyacrylic acid and dissolve the transparent uniform solution of formation fully at 30-50 ° of C temperature, the copolyamide hot-melt adhesive powder that adds again the 15-40 mass parts continues to stir the homodisperse copolyamide slurry of formation; (2) sodium silicate with 1-10 part adds in the water of 20 mass parts, is stirred to sodium silicate and dissolves the uniform solution of formation fully at 30-65 ° of C temperature, and general sodium silicate modulus used is higher, stirs temperature used also higher.Then drip the dehydrated alcohol of 0.25-2.5 mass parts, fully stir the water glass colloidal sol that forms homogeneous transparent; (3) the water glass colloidal sol that the copolyamide slurry that step (1) is made and step (2) make mixes, and namely makes described hot melt adhesive slurry.
Beneficial effect of the present invention is mainly reflected in: adopt the aqueous dispersant polyacrylic acid that copolyamide hot melt adhesive powder particle is disperseed, be conducive to form the water fever colloidal sol slurry of good dispersion property, adopt the ethanol modified sodium silicate aqueous solution to form uniform and stable colloidal sol.Simultaneously, when hot melt adhesive is used, in later stage heat drying process, the less water glass dehydration of content forms the silicon-dioxide amorphous powder, can carry out reinforcement to the copolyamide thermosol of fusing again, because the water glass overall ratio is lower, can not have a negative impact to the copolyamide thermosol cohesive force.The hot melt adhesive slurry that obtains so evenly, stable, viscosity is suitable, can produce good interface with silica gel and be combined, and is suitable for the silk screen printing of silica gel, and remarkable to the hot transfer printing bond effect of addition-type silicon rubber, cohesive strength is high, is difficult to peel off.Hot melt adhesive slurry provided by the invention has a good application prospect in silicon rubber printing in textiles field.
(4) description of drawings
Fig. 1 is the section SEM photo after the hot melt adhesive slurry of the embodiment of the present invention 2 is used for the hot transfer printing of silica gel.
(5) embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1 ~ 9:
(1): press the formula shown in table 1, polyacrylic acid is added in the 80g deionized water, being stirred to polyacrylic acid at 35 ° of C dissolves fully, form transparent uniform solution, add again copolyamide hot melt adhesive powder (Shanghai Tianyang Hotmelt Adhesives Co., Ltd., fusing point: 110-130 ° C, granularity 0-80 micron), continue to stir the homodisperse copolyamide white slurry of formation.
(2) press the formula shown in table 1, with business-like PV3 type quick dissolved sodium silicate powder (chemical plant, fertility In Jiashan river rising in Ningxia and flowing into central Shaanxi, modulus 2.85) add in the 20g deionized water, be stirred to the water glass powder at 65 ° of C and dissolve the solution that forms homogeneous transparent fully, then drip dehydrated alcohol, stir the water glass colloidal sol that forms homogeneous transparent.
(3) the water glass colloidal sol that the copolyamide white slurry that step (1) is made and step (2) make mixes, and obtains water-based copolyamide hot melt adhesive slurry.
The copolyamide hot melt adhesive slurry for preparing is printed on transfer paper, evaporates fully at 140 ° of C baking 5 minutes to moisture, the hot melt adhesive slurry melts fully, then cooling formation hot melt adhesive film.Adopt liquid addition-type silicon rubber (Dongguan Lianzhan Silicone Technology Co., Ltd., TG-1 stamp silica gel and B solidifying agent), the TG-1 and the B solidifying agent that are 100:10 with mass ratio mix, adopt silk-screen printing technique to be printed on the hot melt adhesive rete, solidify at 110 ° of C, obtain hot transfer printing sample.Then with pressing machine with hot transfer printing sample at 150 ° of C pressing 20s to cotton, coolingly observe bond effect after transfer printing with hand tearing layer of silica gel afterwards, result is as shown in table 1.
Embodiment 2 obtains cross-section morphology that the hot melt adhesive slurry carries out the hot transfer printing of silica gel as shown in Figure 1.
Table 1
+: meet the demands, powerful peelable; ++: can tear the part; +++: can not be torn
The embodiment result can find out, hot melt adhesive slurry provided by the invention can act on the hot transfer printing bonding of addition-type silicon rubber preferably, and bond effect is good, is difficult to peel off.
Claims (3)
1. hot melt adhesive slurry that is used for the hot transfer printing of addition-type silicon rubber is characterized in that described hot melt adhesive slurry is comprised of the component of following mass parts:
100 parts of deionized waters, polyacrylic acid 0.1-2 part, copolyamide hot-melt adhesive powder 15-40 part, sodium silicate 1-10 part, dehydrated alcohol 0.25-2.5 part.
2. hot melt adhesive slurry as claimed in claim 1 is characterized in that described hot melt adhesive slurry is comprised of the component of following mass parts:
100 parts of deionized waters, 1 part of polyacrylic acid, 20 parts of copolyamide hot-melt adhesive powders, 5 parts of sodium silicates, 1.25 parts of dehydrated alcohols.
3. hot melt adhesive slurry as claimed in claim 1, it is characterized in that described hot melt adhesive slurry makes by the following method: (1) gets each raw material by ratio of component, the polyacrylic acid of 0.1-2 mass parts is added in the water of 80 mass parts, be stirred to polyacrylic acid and dissolve the transparent uniform solution of formation fully at 30-50 ° of C temperature, the copolyamide hot-melt adhesive powder that adds again the 15-40 mass parts continues to stir the homodisperse copolyamide slurry of formation; (2) sodium silicate with 1-10 part adds in the water of 20 mass parts, be stirred to sodium silicate and dissolve the uniform solution of formation fully at 30-65 ° of C temperature, then drip the dehydrated alcohol of 0.25-2.5 mass parts, fully stir the water glass colloidal sol that forms homogeneous transparent; (3) the water glass colloidal sol that the copolyamide slurry that step (1) is made and step (2) make mixes, and namely makes described hot melt adhesive slurry.
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| CN201210591687.1A CN103102864B (en) | 2012-12-30 | 2012-12-30 | Hot-melting adhesive paste applied to addition type silicon rubber heat transfer printing, and preparation method of hot-melting adhesive paste |
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| CN201210591687.1A CN103102864B (en) | 2012-12-30 | 2012-12-30 | Hot-melting adhesive paste applied to addition type silicon rubber heat transfer printing, and preparation method of hot-melting adhesive paste |
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| CN103102864A true CN103102864A (en) | 2013-05-15 |
| CN103102864B CN103102864B (en) | 2014-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774469A (en) * | 2013-12-06 | 2014-05-07 | 苏州大学 | Dry-type transfer-printed textile and preparation method thereof |
| CN106915143A (en) * | 2015-12-26 | 2017-07-04 | 龚建军 | Solid turns ironing process |
Citations (5)
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| GB1451837A (en) * | 1973-02-15 | 1976-10-06 | Huels Chemische Werke Ag | Dispersions of high-temperature-resistant hot-melt adhesives |
| WO1999041060A1 (en) * | 1998-02-13 | 1999-08-19 | Solutia, Inc. | Process to prepare a polymer nanocomposite composition |
| CN1508198A (en) * | 2002-12-18 | 2004-06-30 | 远东纺织股份有限公司 | Method for preparing nano-level particle surface modifier nano inorganic oxide dispersion and use thereof |
| CN101679048A (en) * | 2007-05-31 | 2010-03-24 | 赢创德固赛有限责任公司 | Tackiness agent and sealant systems |
| CN101818043A (en) * | 2010-02-08 | 2010-09-01 | 启东市鑫鑫粘合剂有限公司 | Grafted polyolefin resin modified polyamine hotmelt adhesive and preparation method thereof |
-
2012
- 2012-12-30 CN CN201210591687.1A patent/CN103102864B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451837A (en) * | 1973-02-15 | 1976-10-06 | Huels Chemische Werke Ag | Dispersions of high-temperature-resistant hot-melt adhesives |
| WO1999041060A1 (en) * | 1998-02-13 | 1999-08-19 | Solutia, Inc. | Process to prepare a polymer nanocomposite composition |
| CN1508198A (en) * | 2002-12-18 | 2004-06-30 | 远东纺织股份有限公司 | Method for preparing nano-level particle surface modifier nano inorganic oxide dispersion and use thereof |
| CN101679048A (en) * | 2007-05-31 | 2010-03-24 | 赢创德固赛有限责任公司 | Tackiness agent and sealant systems |
| CN101818043A (en) * | 2010-02-08 | 2010-09-01 | 启东市鑫鑫粘合剂有限公司 | Grafted polyolefin resin modified polyamine hotmelt adhesive and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774469A (en) * | 2013-12-06 | 2014-05-07 | 苏州大学 | Dry-type transfer-printed textile and preparation method thereof |
| CN106915143A (en) * | 2015-12-26 | 2017-07-04 | 龚建军 | Solid turns ironing process |
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