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Hydrophilic resin coating material for calendaring polyvinyl chloride (PVC) leather

A water-based resin, squeegee technology, applied in textiles, papermaking, fiber processing, etc., can solve problems such as inability to use, unsatisfactory results, and achieve good adhesion, fine and smooth hand feel

Inactive Publication Date: 2012-03-21
清远市美佳乐环保新材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Today's general-purpose water-based resins can't be used on PVC leather, or can't achieve satisfactory results
After literature information search and market research, water-based products for calendered PVC leather are rarely reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1. The preparation process of calendered PVC leather water-based resin coating scraping material is as follows:

[0026] (1) Select polyester polyol in proportion by weight: 10 parts of polyadipate-1,4-butylene glycol ester diol, diisocyanate: 14 parts of isophorone diisocyanate, chain extender: ethylene glycol 3 parts, hydrophilic chain extender: 3 parts of dimethylolpropionic acid, salt forming agent: 4 parts of diethanolamine, water-based leveling agent: 1.5 parts of polyacrylate, water-based thickener: fumed silica (optional Acematt TS-100) 3.5 parts, water-based defoamer: 0.3 parts of isooctyl alcohol, 95 parts of deionized water;

[0027] (2) Preparation of prepolymer: add diisocyanate in the reaction bottle: 14 parts of isophorone diisocyanate and dehydrated polyester polyol: polyadipate-1,4-butylene glycol ester diol 10 parts, heat up to 70°C, react for 3 hours, until the content of NCO in the detection system reaches the specified value, then cool do...

Embodiment 2

[0032] Example 2. The preparation process of calendered PVC leather water-based resin coating scraping material is as follows:

[0033] (1) Select polyether polyol in proportion by weight: 12 parts of polytetrahydrofuran diol (PTMG), diisocyanate: 20 parts of isophorone diisocyanate, chain extender: 2 parts of 1,4-butanediol, pro- Water-based chain extender: 5 parts of dimethylolbutyric acid, salt forming agent: 3.5 parts of triethanolamine, water-based leveling agent: 1.0 parts of butyl cellulose acetate, water-based thickener: associative thickener (optional TEGO® ViscoPlus 3060) 3 parts, water-based defoamer: 1.5 parts of calcium stearate, 90 parts of deionized water;

[0034] (2) Preparation of prepolymer: Add diisocyanate: 20 parts of isophorone diisocyanate and dehydrated polyether polyol: 12 parts of polytetrahydrofuran diol (PTMG) into the reaction bottle, heat up to 85 °C, React for 2.5 hours, until the -NCO content of the detection system reaches the specified va...

Embodiment 3

[0039] Example 3. The preparation process of calendered PVC leather water-based resin coating scraping material is as follows:

[0040] (1) Select 15 parts of polybutadiene diol, diisocyanate: 17 parts of isophorone diisocyanate, chain extender: 1 part of 1,2-propylene glycol, hydrophilic chain extender: two 3.5 parts of hydroxyl half ester, salt forming agent: 2.5 parts of tripropylamine, water-based leveling agent: 0.3 parts of silicone resin, water-based thickener: associative thickener (Collacral LR 8475) 4.2 parts, water-based defoamer : 2.1 parts of aluminum stearate, 100 parts of deionized water;

[0041] (2) Preparation of prepolymer: Add 17 parts of diisocyanate isophorone diisocyanate and 15 parts of dehydrated polybutadiene diol into the reaction bottle, heat up to 90°C, and react for 1 hour until detection System-NCO content, after reaching the specified value, cool down to 40°C;

[0042] (3) Chain extension of prepolymer: Slowly add hydrophilic chain extender...

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PUM

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Abstract

The invention discloses a hydrophilic resin coating material for calendaring polyvinyl chloride (PVC) leather, which is formed by the following steps of proportioning parts by weight of polyatomic alcohol compound, diisocyanate, chain extentor, hydrophilic chain extentor, salifying agent, hydrophilic flatting agent, hydrophilic thickening agent, hydrophilic defoaming agent and deionized water, being prepared by prepolymer, being chain extended by the prepolymer, being neutralized and emulsified by the polymer and the like. The hydrophilic resin coating material for calendaring the PVC leather can resolve the problem that the coating material on surface of the PVC leather is wet and extending. The hydrophilic resin coating material can be prepared with existing equipment, thereby saving production cost. Treating effects of the hydrophilic resin coating material for calendaring the PVC leather are identical with treating effects of corresponding solvent products. Furthermore, compared with traditional solvent products, the hydrophilic resin coating material for calendaring the PVC leather is more excellent in scraping resistance, full touch, fine texture and the like.

Description

technical field [0001] The invention relates to a resin coating scraping material for rolling PVC leather, in particular to a water-based resin coating scraping material for rolling PVC leather. Background technique [0002] At present, all industries are facing the need for sustainable development. As a traditional industry, in the manufacturing process of PVC leather, the coating and scraping materials used are all solvent-based. The use of solvents will cause various hazards, such as operator health, environmental pollution, storage and transportation and other safety hazards. The volatilization and recovery of solvents will also cause waste of resources and energy, and it does not conform to the national industrial policy of energy conservation and emission reduction. With the development of the economy and the global integration of environmental protection and energy issues have also attracted the attention of various countries, the development and use of water-based ...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06M15/568D06M15/572D06N3/08C08G18/10C08G18/66
Inventor 张雅胜关仲翔
Owner 清远市美佳乐环保新材股份有限公司
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