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Waterborne knurling assistant suitable for synthetic leather

A synthetic leather, water-based technology, applied in the direction of coating, textiles and papermaking, etc., can solve the problems of poor embossing effect, etc., to achieve the effect of ensuring integrity and aesthetics, prominent pattern lines, and clear pattern lines

Inactive Publication Date: 2017-07-18
江西展邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high elasticity of polyurethane makes the embossing effect not good, so it is necessary to use embossing aids on the basis of not changing the polyurethane structure to ensure the embossing effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Waterborne knurling assistant suitable for synthetic leather
  • Waterborne knurling assistant suitable for synthetic leather
  • Waterborne knurling assistant suitable for synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Add 0.5 parts of N-vinylpyrrolidone and 0.05 parts of vinyl ferrocene to 3 parts of polyvinyl alcohol resin, and heat up to 115-120 ° C at a heating rate of 5 ° C / min for 30 minutes, and then mix for 10 The cooling rate of °C / min is lowered to 70-80 °C, then 2 parts of hydrogenated palm oil and 0.3 part of molecular sieve powder are added, and then mixed at 70-80 °C for 15 minutes to obtain material I;

[0025] (2) Add 1 part of disodium lauryl sulfosuccinate and 0.5 part of polyepoxysuccinic acid to 25 parts of 50 wt% modified terpene resin emulsion, and heat up to reflux state at a heating rate of 5 °C / min Mixed for 15min, then naturally cooled to room temperature to obtain material II;

[0026] (3) Add 5 parts of nano-titanium dioxide modified poloxamer and 2 parts of pregelatinized tapioca starch to 100 parts of water, stir to make it completely dissolve and let it stand for 30 minutes, then add material I, material II and 0.2 part of tetraglycine , fully mix...

Embodiment 2

[0030] (1) Add 0.5 parts of N-vinylpyrrolidone and 0.05 parts of vinyl ferrocene to 3 parts of polyvinyl alcohol resin, and heat up to 115-120 ° C at a heating rate of 5 ° C / min for 30 minutes, and then mix for 10 ℃ / min cooling rate to 70-80 ℃, add 1 part of hydrogenated palm oil and 0.3 part of molecular sieve powder, and then mix at 70-80 ℃ for 15 minutes to obtain material I;

[0031] (2) Add 1 part of disodium lauryl sulfosuccinate and 0.5 part of polyepoxysuccinic acid to 25 parts of 50 wt% modified terpene resin emulsion, and heat up to reflux state at a heating rate of 5 °C / min Mixed for 15min, then naturally cooled to room temperature to obtain material II;

[0032] (3) Add 3 parts of nano-titanium dioxide modified poloxamer and 2 parts of pregelatinized tapioca starch to 100 parts of water, stir to make it completely dissolve and let it stand for 30 minutes, then add material I, material II and 0.2 part of tetraglycine , fully mixed and then sent to a ball mill for...

Embodiment 3

[0047] Add the water-based embossing assistant made in the same amount of Example 1, Example 2, Comparative Example 1 and Comparative Example 2 to the water-based polyurethane slurry (as shown in Table 1), and set the contrast without adding the water-based embossing assistant Example 3: Synthetic leather products were produced through the same processing technology, and their embossing effects were compared. The results are shown in Table 2.

[0048] Table 1 Waterborne polyurethane slurry formulation

[0049]

[0050]

[0051] Table 2 Embossing effect of synthetic leather products

[0052]

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PUM

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Abstract

The invention discloses a waterborne knurling assistant suitable for synthetic leather, and relates to the technical field of synthetic leather functional assistants. The waterborne knurling assistant is prepared from the following raw materials in parts by weight: 15 to 25 parts of 50 percent by weight modified terpene resin emulsion, 3 to 5 parts of nanometer titanium dioxide modified poloxamer, 2 to 3 parts of pre-gelatinized cassava starch, 2 to 3 parts of polyvinyl alcohol resin, 1 to 2 parts of hydrogenated palm oil, 1 to 2 parts of disodium lauryl sulfosuccinate, 0.5 to 1 part of polyepoxysuccinic acid, 0.5 to 1 part of N-vinyl pyrrolidone, 0.3 to 0.5 part of molecular sieve raw powder, 0.1 to 0.3 part of tetra-polyglycine, 0.05 to 0.1 part of vinyl ferrocene, and 50 to 100 parts of water. By adopting the waterborne knurling assistant disclosed by the invention, the clearness of pattern lines can be increased remarkably in a knurling process, the pattern lines are remarkable and outstanding, and the appearance quality of patterns is improved greatly; moreover, the phenomenon of deformation of the patterns during use can be avoided effectively, and the integrity and attractiveness of the patterns are ensured.

Description

[0001] Technical field: [0002] The invention relates to the technical field of functional auxiliary agents for synthetic leather, in particular to a water-based embossing auxiliary agent suitable for synthetic leather. [0003] Background technique: [0004] Synthetic leather is a plastic product that simulates the composition and structure of natural leather and can be used as its substitute material. Usually, the impregnated non-woven fabric is used as the mesh layer, and the microporous polyurethane layer is used as the grain layer. Its front and back are very similar to leather, and has a certain degree of air permeability, which is closer to natural leather than ordinary artificial leather. It is widely used in making shoes, boots, bags and ball games. [0005] At present, many synthetic leather products need embossing to improve the appearance and physical and mechanical properties of synthetic leather. The soft and hard segment structure and crystallization propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D7/00D06N3/00D06N3/04
CPCC08K5/42C08K2003/2241C08K2201/011C08L3/02C08L29/04C08L45/00C09D7/20C09D7/61C09D7/65D06N3/0061D06N3/0063D06N3/04D06N2209/16D06N2211/28
Inventor 曾丽建郑建荣张维贤李海
Owner 江西展邦科技有限公司
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