CN1117099A

CN1117099A - Surface modification treatment for sheep's fleece

Info

Publication number: CN1117099A
Application number: CN 94108511
Authority: CN
Inventors: 刘纪善; 张海燕; 刘立青
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-16
Filing date: 1994-07-16
Publication date: 1996-02-21

Abstract

The present invention uses KMnO4 or other oxidant to peel the scales on the surface of sheep's fleece. After reduction, it treats sheep's fleece with softening agent. The treated sheep's fleece is soft and wash-resistant. It can meet the requirement as high-grade clothing. The present invention makes it possible to use low-grade sheep's fleece to produce fine product.

Description

The surface modification of sheep suede is handled

The present invention relates to a kind of processing to wool, especially the surface modification of sheep suede is handled.

At present, the wool spinning product requirements is improved day by day, except that on designs and varieties, having proposed the higher requirement, aspect wearability, also have higher requirement, at first require product to have the soft hand feeling effect, so do not shrink after requiring to wash, not balling-up, and can " machine washable ".Interim in China's " wool spinning science and technology " 89 years the 6th, summarized the shiinkproof finish method of some wool fabrics, be oxidizing process or performed polymer processing method, the employing that oxidizing process has is organic releases chlorine agent (dichloro fulminuric acid and sodium salt thereof), the employing persulfuric acid that has makes the wool oxidation as oxidant, these methods have only been made general description to shrinkproof problem, and other are not obtained the fine solution that relates to as yet such as problems such as sliding glutinous, soft hand feeling effects, and process complexity, wayward grasp, cost are also higher.

It is simple to the purpose of this invention is to provide a kind of technology, and cost is lower, can make sliding glutinous, the soft hand feeling effect of sheep suede, is rich in gloss, does not shrink after the washing, the surface modification processing method of not balling-up.

For solving above-mentioned task, the solution that the present invention adopts is: at first sheep suede surface scale is carried out oxidation processes, oxidization time is 5-30 minutes, temperature is controlled at 25-65 ℃, then dry or bleed off raffinate, reduce processing again, recovery time is 5-30 minutes, temperature is controlled at 25-60 ℃, cleans through drying or after bleeding off raffinate, and temperature is controlled at 25-50 ℃, drying or bleed off raffinate again adds heavy 0.5-4% (weight) of sheep suede hair and carries out soft treatment with softener, temperature is controlled at 25-65 ℃, and 5-30 minutes time, finishing operation is flushing, dry, oven dry, combing;

The composition of its oxidation bath, contain following component:

A. neopelex 0.1-0.6%

B. potassium permanganate 0.1-0.9%

C. water 99.8-98.5%

Below all be weight percentage, the percentage sum should be 100%;

The composition of its reducing bath, contain following component:

A. sodium sulfite 1-8%

B. water 99-92%

Below all be weight percentage, the percentage sum should be 100%, and described reducing bath needs to transfer pH value at 5-6 with glacial acetic acid.

The present invention has following advantage:

1. technological design is simple, and equipment is not had specific (special) requirements, and cost is lower, and selected chemical raw material source abundance is easy to get, and is suitable for factory's serialization or batch production, can utilize low-grade lint, produces meticulous product.

2. sheep suede has after treatment not only improved inherent quality, but also has obtained that durable cunning is glutinous, the soft hand feeling effect, through repeatedly the washing after do not shrink, not balling-up, and energy " machine washable ", can improve its gloss and whiteness simultaneously, make product jump onto new class.

Below the specific embodiment of the present invention is described in further detail:

Embodiment 1. raw materials are the sheep suede without washing of preferred combing, fineness is at 17-22 μ, 32-40 millimeters of average lengths, at first with the industrial neopelex of 0.6% (weight), the industrial potassium permanganate of 0.9% (weight), the water of 98.5% (weight) mixes, sheep suede surface scale carried out 5 minutes oxidation processes, temperature is controlled at 25 ℃, then dry, water with the industrial sodium sulfite and 92% (weight) of 8% (weight) mixes again, and transfer pH value at 5-6 with industrial glacial acetic acid, the reduction that sheep suede after oxidation was carried out 5 minutes is handled again, and temperature is controlled at 25 ℃, through drying, clean, temperature is controlled at 25 ℃, dry and add heavy 0.5% (weight) hair of sheep suede and carry out 5 minutes soft treatment with softener, temperature is controlled at 25 ℃, after flushing, dry, oven dry, combing.

The selected sheep suede of embodiment 2. is with embodiment 1, at first with the industrial neopelex of 0.1% (weight), the industrial potassium permanganate of 0.1% (weight), the water of 99.8% (weight) mixes, sheep suede surface scale carried out 30 minutes oxidation processes, temperature is controlled at 65 ℃, then dry, again the industrial sodium sulfite of 1% (weight) is mixed with the water of 99% (weight), and transfer pH value at 5-6 with industrial glacial acetic acid, and again the sheep suede through oxidation to be carried out reduction in 30 minutes and handle, temperature is controlled at 65 ℃, through drying, clean, temperature is controlled at 50 ℃, dries to add heavy 4% (weight) hair of sheep suede and use softener again, carries out 30 minutes soft treatment, temperature is controlled at 65 ℃, at last again through flushing, dry, oven dry, combing.

Embodiment 3. selected sheep suedes are with embodiment 1,2, at first with the industrial neopelex of 0.3% (weight), 0.5% (weight) potassium permanganate, the water of 99.2% (weight) mixes, sheep suede surface scale carried out 15 minutes oxidation processes, temperature is controlled at 45 ℃, then dry, with the industrial sodium sulfite of 4.5% (weight), the water of 95.5% (weight) mixes again, and transfers pH value at 5-6 with industrial glacial acetic acid, the reduction that sheep suede through oxidation was carried out 15 minutes is handled again, temperature is controlled at 40 ℃, through drying, clean, temperature is controlled at 40 ℃, dry again and add heavy 2% (weight) the hair softener of sheep suede, carry out 15 minutes soft treatment, temperature is controlled at 40 ℃, at last again through flushing, dry, oven dry, combing.

Claims

1. the surface modification of a sheep suede is handled, it is characterized in that at first sheep suede surface scale being carried out oxidation processes, oxidization time is 5-30 minutes, temperature is controlled at 25-65 ℃, then dry or bleed off raffinate, reduce processing again, recovery time is 5-30 minutes, and temperature is controlled at 25-60 ℃, cleans through drying or after bleeding off raffinate, temperature is controlled at 25-50 ℃, dry or bleed off raffinate again and add 0.5-4% heavy softener of sheep suede, carry out soft treatment, temperature is controlled at 25-65 ℃, 5-30 minutes time, finishing operation is flushing, dry, oven dry, combing.

2. the oxidation bath composition of sheep suede processing method according to claim 1 is characterized in that containing following component:

A. neopelex 0.1-0.6%

B. potassium permanganate 0.1-0.9%

C. water 99.8-98.5%

Below all be weight percentage, the percentage sum should be 100%.

3. the reducing bath composition of sheep suede processing method according to claim 1 is characterized in that containing following component:

A. sodium sulfite 1-8%

B. water 99-92%