Leather finishing agent with color changing function and strong downy feeling and preparation method thereof

A technology of leather treatment agent and velvet feel, which is applied in fiber treatment, textiles and papermaking, etc. It can solve the problems of insufficient velvet feel, unsatisfactory temperature resistance, and insufficient dispersion of fluff powder, etc., to achieve more fluffy feel and suede surface Better effect, good fluffy effect

Inactive Publication Date: 2012-12-26
HANGZHOU COLORICH CHEM MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are shortcomings such as insufficient dispersion of fluff p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1:

[0031] Add 15kg of toluene, 20kg of dimethylformamide, and 7kg of methyl ethyl ketone into a large tank and add 3kg of cellulose acetate butyrate with stirring. After adding, control the stirring speed to 800-1500 revolutions per minute, and control the temperature not to exceed At 50°C, fully dissolve the cellulose acetate butyrate to obtain a transparent liquid. After the dissolution is complete, add 8kg of stress-changing wax powder and disperse it evenly, and then filter it into another large tank with 200 meshes.

[0032] Then add 0.5 kg of sodium lauryl sulfate dispersant, 0.5 kg of polyether siloxane leveling agent, and 37 kg of modified aliphatic polyurethane resin in sequence, then stir, add 2 kg of fumed silica thickening powder at low speed And 7kg of yellow nylon fluff powder, after all the materials are added, increase the speed at the stirring speed of 800-1000 rpm, pay attention to control the temperature not to exceed 50 ℃ for high-speed dispersi...

Example Embodiment

[0034] Example 2:

[0035] Add 10kg of toluene, 25kg of dimethylformamide, and 7.5kg of methyl ethyl ketone into a large tank while stirring, add 2.5kg of cellulose acetate butyrate, and control the stirring speed to 800-1500 rpm after the addition, and control the temperature Not more than 50°C, fully dissolve the cellulose acetate butyrate to obtain a transparent liquid. After the dissolution is complete, add 8kg of stress-changing wax powder and disperse evenly, and then filter it into another large tank with 200 mesh.

[0036] Then add 0.5 kg of sodium lauryl sulfate dispersant, 0.5 kg of polyether siloxane leveling agent, and 37.5 kg of modified aliphatic polyurethane resin in sequence, and then stir. Add 1.5 kg of fumed silica at low speed. Thick powder and 7kg of yellow nylon fluff powder, after adding all the materials, increase the speed at the stirring speed of 800-1000 rpm, pay attention to control the temperature not to exceed 50 ℃ for high-speed dispersion for about 20...

Example Embodiment

[0038] Example 3:

[0039] Add 10kg of toluene, 25kg of dimethylformamide, and 7kg of methyl ethyl ketone into a large tank and add 2kg of cellulose acetate butyrate under stirring. After the addition, control the stirring speed to 800-1500 revolutions per minute, and control the temperature not to exceed At 50°C, fully dissolve the cellulose acetate butyrate to obtain a transparent liquid. After the dissolution is complete, add 8kg of stress-changing wax powder and disperse it evenly, and then filter it into another large tank with 200 meshes.

[0040] Then add 0.5 kg of sodium lauryl sulfate dispersant, 0.5 kg of polyether siloxane leveling agent, and 40 kg of modified aliphatic polyurethane resin in sequence, and then stir. Add 1 kg of fumed silica thickening powder at low speed. And 6kg of yellow nylon fluff powder, after all the materials are added, increase the speed at the stirring speed of 800-1000 rpm, pay attention to control the temperature not to exceed 50 ℃ for high-sp...

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Abstract

The invention discloses a leather finishing agent with color changing function and strong downy feeling and a preparation method thereof, relating to a surface treating agent for synthetic leather. The preparation method comprises the following steps: a, adding a solvent, adding cellulose acetate with stirring, after completely dissolving, adding wax powder to uniformly disperse, then filtering with a 200 mesh sieve, and then putting in a vat; and b, adding the rest materials in order, then stirring to uniformly disperse, wherein the order of adding the materials is a dispersant, a levelling agent, resin, thickening powder, and fluff powder, the stirring speed is 800-1500 rpm, and the temperature is controlled within 50 DEG C; c, after stirring, grinding one to three times by a three-roller machine, and packaging after passing the product inspection to obtain a finished product. According to the invention, the problem of bad dispersibility of fluff powder and wax powder in a high viscosity system is solved, and the prepared finished product has the advantages of good downy feeling, good suede effect, good resilience, good color-change property, high temperature resistance, and strong leather feeling.

Description

Technical field: [0001] The invention relates to a surface treatment agent for synthetic leather, in particular to a leather treatment agent with a color-changing function and a strong suede feel and a preparation method thereof. Background technique: [0002] Synthetic leather is usually a thin sheet formed by laminating polyurethane resin composition on non-woven fabric, woven fabric or woven fabric. Its structure generally includes a base fabric and a polyurethane resin surface layer attached to the base fabric. The surface layer is mainly used for decoration and to achieve the effect of imitating natural leather. Color-changing function Suede leather treatment agent is a popular synthetic leather, its surface is messy and disordered, has a real leather feel, and can show the color-changing effect of the leather surface when it is pushed up. It has been used on shoe leather and sofa leather with good effect. Now it is generally made of a combination of polyurethane resi...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06M15/07D06M15/647D06M11/79
Inventor 丁海燕聂成孙肖欢帅宏喜
Owner HANGZHOU COLORICH CHEM MATERIALS
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