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A kind of powder dusting thermal transfer silica gel, preparation method and application thereof

A thermal transfer, silicone technology, applied in transfer printing method, printing, printing process and other directions, can solve the problem of large amount of waste water, poor adhesion between the hot melt adhesive layer and the silicone layer, and the wetting between the hot melt adhesive layer and the silicone layer. Problems such as poor bonding, to achieve the effect of meeting environmental protection requirements and good bonding performance

Active Publication Date: 2021-10-22
广东省良展有机硅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, solvent-based hot sol has initially solved the problem of poor adhesion between the hot melt adhesive layer and the silica gel layer. However, the solvents used in the preparation process are often ketones, benzene, ethers or amides. These organic solvents cannot meet the strict requirements. Environmental protection requirements, especially amides are generally banned
Although there are some water-based hot-melt adhesive products, there are still problems of large amount of waste water, poor wetting and bonding between the hot-melt adhesive layer and the silica gel layer, and there is no large-scale use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: A powdered thermal transfer silica gel provided in this example, which is composed of component A and component B in a mass ratio of 10:1; wherein, in parts by mass,

[0028] The A component is composed of the following components: 100 parts of vinyl polysiloxane, 10-40 parts of white carbon black, 1-3 parts of platinum catalyst and 0.5-2 parts of diethyl citrate zirconium chelate;

[0029] The component B is composed of the following components: 100 parts of hydrogen-containing silicone oil and 5-10 parts of inhibitor.

[0030] Preferably, the inhibitor includes one or more of methyl butynol, ethynyl cyclohexanol, phenyl butynol, and propyl butynol; preferably, the inhibitor contains volume The ratio is 10-30% methyl butynol; more preferably, the inhibitor is a complex of methyl butynol and propylbutynol with a volume ratio of 15:85.

[0031] Preferably, the vinyl polysiloxane refers to a polydiorganosiloxane containing two or more vinyl groups; preferably,...

Embodiment 2

[0043] Example 2: A powdered thermal transfer silica gel provided in this example, which is composed of component A and component B in a mass ratio of 10:1; wherein, in parts by mass,

[0044] The A component is composed of the following components: 100 parts of vinyl polysiloxane, 10 parts of white carbon black, 1 part of platinum catalyst and 0.5 part of diethyl citrate zirconium chelate;

[0045] The B component is composed of the following components: 100 parts of hydrogen-containing silicone oil and 5 parts of inhibitor.

[0046]Wherein, the vinyl polysiloxane is double-terminated vinyl polydimethylsiloxane with a vinyl content of 0.13% and a viscosity of 6000mPa·s; the white carbon black is a surface-treated fumed white carbon black; the platinum catalyst uses a concentration of 5000ppm H 2 PtCl 6 isopropanol solution; the inhibitor is a compound of methyl butynol and propyl butynol with a volume ratio of 15:85; the hydrogen content of the hydrogen-containing silicone ...

Embodiment 3

[0057] Embodiment 3: A powdered thermal transfer silica gel provided in this embodiment, which is composed of component A and component B in a mass ratio of 10:1; wherein, in parts by mass,

[0058] The A component is composed of the following components: 100 parts of vinyl polysiloxane, 40 parts of white carbon black, 2 parts of platinum catalyst and 2 parts of diethyl citrate zirconium chelate;

[0059] The B component is composed of the following components: 100 parts of hydrogen-containing silicone oil and 7.5 parts of inhibitor.

[0060] Wherein, the vinyl polysiloxane is a double-ended vinyl polydimethylsiloxane, and the vinyl content is 0.13%, and the viscosity is 8000mPa·s; the white carbon black is a surface-treated fumed white carbon black; the platinum catalyst uses a concentration of 5000ppm H 2 PtCl 6 tetrahydrofuran solution; the inhibitor uses a compound of methyl butynol and propyl butynol with a volume ratio of 15:85; the hydrogen content of the hydrogen-con...

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Abstract

The invention discloses a dusting thermal transfer silica gel, which is composed of component A and component B at a mass ratio of 10:1; in parts by mass, the component A is composed of 100 parts of vinyl Siloxane, 10-40 parts of white carbon black, 1-3 parts of platinum catalyst and 0.5-2 parts of diethyl citrate zirconium chelate; the B component consists of 100 parts of hydrogen-containing silicone oil and 5-10 parts of Inhibitor composition; also discloses a preparation method of dusting thermal transfer silica gel; and discloses application of dusting thermal transfer silica gel. The present invention accurately controls the addition amount of the inhibitor and the platinum catalyst, so that the silica gel layer will not be completely solidified before the hot-melt powder is completely melted to form a film, so that the silica gel layer and the hot-melt powder layer have good bonding performance after curing, and the combination is firm It is not easy to fall off and meets the process requirements of thermal transfer printing; in the whole preparation process, no volatile solvent is added, there is no problem of solvent volatilization and residue, and it meets strict environmental protection requirements.

Description

technical field [0001] The invention relates to the field of silica gel printing screens, in particular to a powdered thermal transfer silica gel, a preparation method and an application thereof. Background technique [0002] With the rapid development of high technology, thermal transfer printing technology has been widely used in fabric printing products. The traditional thermal transfer printing process mainly adopts screen printing, gravure printing and other printing methods, that is, the pattern is printed on the thermal transfer film, and the graphics and text are transferred to fabrics, leather and other items by heating and pressing. The common thermal transfer printing process is mainly the thermal transfer printing of ink, and its color is bright and bright. However, the ink thermal transfer pattern feels hard, has no three-dimensional effect, poor resilience, and ink printing pollution is relatively large, which causes great harm to the body of workers. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08K9/00C08K7/26C08K5/11C08K5/05B44C1/165B44C1/17D06P5/24
CPCB44C1/165B44C1/1716B44C1/1729C08L83/04C08L2205/025D06P5/003C08K9/00C08K7/26C08K5/11C08K5/05
Inventor 王志良
Owner 广东省良展有机硅科技有限公司