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Heat-unbinding polyurethane finishing agent resistant to crushing, and production method

An anti-wrinkle finishing agent and production method technology, which can be used in fiber processing, textile and paper making, natural fibers, etc., and can solve problems such as poor anti-wrinkle effect.

Inactive Publication Date: 2009-06-03
LIAONING FIXED STAR FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The anti-wrinkle effect of silicone and polyvinyl acetate mixture as fabric non-ironing finishing agent is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0041] Raw materials and ratio (weight):

[0042] a. Hydroxyl-terminated polybutadiene (hydroxyl value 56) 120

[0043] b. Trimethylolpropane 6

[0044] c. Dimethylolpropionic acid 13

[0045] d. IPDI 90

[0046] e. Caprolactam 37

[0047] f.N-Methylpyrrolidone 100

[0048] g. Ammonia (20%) 20

[0049] h. Deionized water 550

[0050] Process method:

[0051] Add a, b, c, d, f into the reactor and react at 70-100°C for 3-7 hours

[0052] After that, add e and react at 70-105°C for 4-7 hours, cool down to 30-50°C, and discharge

[0053] Stir and emulsify in an emulsification tank with g and h added, and then filter and discharge to obtain the product.

experiment example 2

[0055] Raw materials and ratio (weight):

[0056] a. Hydroxyl-terminated polysiloxane (hydroxyl value 56) 100

[0057] b. Glycerol 5

[0058] c. Dimethylolpropionic acid 10

[0059] d. Hydrogenated MDI 100

[0060] f. Dioxane 80

[0061] e. Acetone oxime 28

[0062] g. Ammonia (20%) 20

[0063] h. Deionized water 478

[0064] Process method: as described in Example 1.

experiment example 3

[0066] Raw materials and ratio (weight):

[0067] a. Hydroxyl-terminated polybutadiene (hydroxyl value 56)

[0068] Or 60 parts of hydroxyl-terminated polysiloxane (hydroxyl value 112)

[0069] b. Trimethylolpropane 6 parts

[0070] c. Dimethylolbutyric acid 15

[0071] d. MDI 115

[0072] e. Phenol 36

[0073] f. Dimethylformamide 100

[0074] g. Ammonia (20%) 24

[0075] h. Deionized water 580

[0076] Process method: as described in Example 1.

[0077] The method of using the thermally decomposed polyurethane anti-wrinkle finishing agent of the present invention: mix this product with water to form an aqueous solution with a content of 3-10%, and after the fabric is padded at room temperature, it is pre-baked at 80-100°C for 3 minutes, and then dried at 120-100°C. Bake at 150°C for 3 minutes.

[0078] Test results after the thermally unblocked polyurethane anti-wrinkle finishing agent of the present invention is used for cotton fabric anti-wrinkle finishing

[0079]...

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PUM

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Abstract

The present invention relates to a thermal deblocking polyurethane crease-resisting finishing agent. Its composition includes (by wt%) 20-60% of hydroxyl terminated polymer whose average mole mass is 400-6000; 0.1-10% of tribasic alcohol compound; 6-20% of dimethylol carboxylic acid compound; 20-50% of polyisocyanate compound; 6-30% of isocyanate blocking agent and 0.6-6% of ammonia water. Said invention also provides its preparation method and concrete steps.

Description

technical field [0001] The invention relates to a water-based polyurethane resin anti-wrinkle finishing agent for cotton fabrics. [0002] The polyurethane resin anti-wrinkle finishing of the present invention contains 20-60% of polymer weight-terminated polybutadiene; [0003] The anti-wrinkle finish of the polyurethane resin of the invention is a kind of heat-deblocking polyurethane, and the content of the sealing agent is 2-40% of the weight of the polymer. Background technique [0004] At present, most of the non-ironing finishing agents that replace formaldehyde are polycarboxylic acid compounds. For example: "Preparation of Formaldehyde-Free Finishing Agent BTCA" disclosed in "Dyeing Auxiliaries" magazine 1999 16 (12) 19-21; "Synthesis and Application of Ironing Finishing Agent"; "Printing and Dyeing Auxiliaries" magazine 1998 15 (5) 1-6 disclosed "polyacid a formaldehyde-free non-iron finishing agent published in printing and dyeing auxiliaries"; a kind of European ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/564D06M101/02
Inventor 严欣宁杨文堂仇凯倪成涛
Owner LIAONING FIXED STAR FINE CHEM
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