Method for stripping organic fluorine waterproof agent

A water repellent, organic fluorine technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems of color difference defective cloth can not be repaired, can not achieve good peeling effect, etc., achieve excellent hydrophilic performance, Reproducible results

Inactive Publication Date: 2015-04-22
JIANGSU NEW REBA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not easy to remove the organic fluorine water repellent, and at the present stage, due to environmental protection issues, C8 organic fluorine products are completely banned, and additive manufacturers vigorously promote C6 organic fluorine products to

Method used

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  • Method for stripping organic fluorine waterproof agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Cotton thick twill gauze garment fabric after organic fluorine three-proof and non-ironing finishing, specification: 16SX12S / 108X56, stripping organic fluorine three-proof, including the following specific steps:

[0025] (1) Configure the working solution; the working solution contains 20g / L silicon spot stripping agent FORYL CPH, 10g / L caustic soda;

[0026] (2) Put the fabric that needs to be repaired into the working solution, and boil it for 45 minutes at 115°C;

[0027] (3) Wash with hot water at a temperature of 95°C for 10 minutes;

[0028] (4) Configure fresh working solution; containing 15g / L hydrophilic finishing agent KINDGER DF-C, 5g / L isopropanol;

[0029] (5) Place the fabric treated in step (3) in the fresh working solution prepared in step (4), and heat it up to 100°C for 30 minutes;

[0030] (6) Finally, wash with hot water above 90°C for 5-10 minutes.

[0031] The temperature of the step (3) is strictly controlled, and the repaired fabric can only ...

Embodiment 2

[0034] Cotton thick twill gauze garment fabric after organic fluorine three-proof and non-ironing finishing, specification: 16SX12S / 108X56, stripping organic fluorine three-proof, including the following specific steps:

[0035] (1) Configure the working solution; the working solution contains 15g / L silicon spot stripping agent FORYL CPH, 20g / L caustic soda;

[0036] (2) Put the fabric that needs to be repaired into the working solution, and boil it for 30 minutes at 120°C;

[0037] (3) Wash with hot water at 100°C for 5 minutes;

[0038] (4) Configure fresh working solution; containing 5g / L hydrophilic finishing agent KINDGER DF-C, 10g / L isopropanol;

[0039] (5) Place the fabric treated in step (3) in the fresh working solution prepared in step (4), and heat it up to 120°C for 20 minutes;

[0040] (6) Finally, wash with hot water above 90°C for 5-10 minutes.

[0041] The temperature of the step (3) is strictly controlled, and the repaired fabric can only be placed after t...

Embodiment 3

[0044] Cotton thick twill gauze garment fabric finished with Clariant chemical fluorine-free waterproofing agent FFR, specification: 16SX12S / 108X56, stripping fluorine-free waterproofing agent FFR, including the following specific steps:

[0045] (1) Configure the working solution; the working solution contains 10g / L silicon spot stripping agent FORYL CPH, 15g / L caustic soda;

[0046] (2) Put the fabric that needs to be repaired into the working fluid, and boil it for 45 minutes at 100°C;

[0047] (3) Wash with hot water at a temperature of 95°C for 10 minutes;

[0048] (4) Configure fresh working solution; containing 10g / L hydrophilic finishing agent KINDGER DF-C, 12g / L isopropanol;

[0049] (5) Place the fabric treated in step (3) in the fresh working solution prepared in step (4), and heat it up to 110°C for 25 minutes;

[0050] (6) Finally, wash with hot water above 90°C for 5-10 minutes.

[0051] The temperature of the step (3) is strictly controlled, and the repaired ...

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Abstract

The invention discloses a method for stripping an organic fluorine waterproof agent. The method specifically comprises the following steps: (1) preparing a working solution; (2) putting a plus material needed to be returned for repair into the working solution, heating to more than 95 DEG C, and boiling for 30-45 minutes; (3) washing for 5-10 minutes by using hot water at the temperature of more than 90 DEG C; (4) preparing a fresh working solution; (5) putting the plus material treated in the step (3) into the fresh working solution prepared in the step (4), heating to more than 95 DEG C, and treating for 20-30 minutes; and (6) finally, washing for 5-10 minutes by using hot water at the temperature of more than 90 DEG C. By adopting the method disclosed by the invention, while organic fluorine is stripped from a fabric, an excellent hydrophilic property is brought to the fabric, so that a good basis is laid for returning defective cloth for repair; and besides, experiences prove that the method disclosed by the invention also has a very good effect of stripping fluorine-free waterproof agents.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a process for stripping organic fluorine water repellent from waterproof fabrics, and is also applicable to the stripping of fluorine-free water repellent. Background technique [0002] The dyeing and finishing industry generally uses the over-dyeing method to repair color-difference and defective cloth back and forth. However, due to the water-repelling and oil-repelling effects of organic fluorine waterproofing, the color-difference fabrics cannot be dyed at all by the over-dyeing method. Even if a small part of the dye is dyed, it is only adsorbed on the surface of the fiber. After friction and washing It will fall off in large quantities. In response to this problem, the dyeing and finishing industry has come to a conclusion after repeated tests that the organic fluorine water repellent on the color difference cloth to be repaired must be stripped off be...

Claims

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Application Information

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IPC IPC(8): D06M13/144D06M11/38D06L1/12D06M101/06
Inventor 储平
Owner JIANGSU NEW REBA TECH CO LTD
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