Excellent shrink resistance animal fibre and method for preparing same

An animal fiber, an excellent technology, applied in the field of animal fiber and its preparation, can solve the problems of not being able to obtain sufficient shrinkage, ozone bubbles, fiber aggregates, and large bubbles

Inactive Publication Date: 2002-02-06
KURASHIKI BOSEKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bubbles generated by the glass filter etc. are too large to allow the ozone bubbles to reach the fine details of the fiber aggregates, so only the surface of the fiber aggregates is treated.
It has been well established by experience that when a woolen article comprising a mixture of approximately 90% preshrunk wool fibers and approximately 10% unshrunk wool fibers is washed in water, it shrinks to the same extent as nonshrunk wool, whereas in In the above-mentioned method, due to the uneven exposure of the wool to the ozone gas, the treatment is uneven, and due to this unevenness, it is not possible to obtain sufficient shrink resistance.

Method used

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  • Excellent shrink resistance animal fibre and method for preparing same
  • Excellent shrink resistance animal fibre and method for preparing same
  • Excellent shrink resistance animal fibre and method for preparing same

Examples

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preparation example Construction

[0081] The method for the production of animal fibers according to the invention is characterized by a two-stage oxidation comprising a first step, primary oxidation of the animal fibers and a second step, subjecting the primary oxidized animal fibers to a higher order oxidation, and further comprising the subsequent step of subjecting the higher order oxidation to Reduction of cysteine ​​bond cleavage.

[0082] Next, the method in the present invention will be described in more detail.

[0083] In the method of the present invention, the first step is a pretreatment step of oxidizing the cysteine ​​bond with ozone, at this stage, the cysteine ​​bond in the fibrous epidermis utilizes an oxidizing agent that can oxidize the animal fiber-S-S-bond Primary oxidation, to an essentially single-oxidation state.

[0084] As the preferred oxidizing agent used in the primary oxidation, persulfuric acid, peracetic acid, performic acid, various peroxyacids and neutral or acidic salts of ...

Embodiment 1

[0136] Wool tops according to image 3 The depicted flow diagrams are continuously processed. The moving speed of the top through the process, that is, the speed of the padding treatment mandrel, the ozone treatment tank, the reduction treatment tank, the water washing treatment tank and the drying process, was 2 m / min.

[0137] [Padding process]

[0138] 9 tops (25 g / m) made of 20.7 μm Australian Merino wool were transferred to a rotary needle bar, which wool tops were then “fiber-carded” into ribbons by drafting 1.66 times. The strip-shaped tops were padded in an aqueous solution having the following composition and squeezed dry by a liquid manger.

[0139] Composition of padding aqueous solution

[0140] Potassium hydrogen persulfate KHSO 5 : Concentration is 40g / L

[0141] ("Oxone", manufactured by DuPont)

[0142] Wetting agent "Alcopol 650" concentration is 2g / L

[0143] (manufactured by Ciba-Geigy Specialty Chemicals)

[0144] processing conditions

[0145] Con...

Embodiment 2

[0201] A top of 20.7μ Australian Merino wool was processed according to the method of Example 1. But the difference is that the top feeding speed is 0.55m / min, and the contact time between the treatment liquid and the wool in the ozone treatment tank and other treatment tanks is 2 minutes. The apparent feed rate of ozone to wool was 5.37% owf.

[0202] 25g / mX9X1 / 1.66=135.5g / m wool

[0203] 135.5g / mX0.55m / minXcontact time 2min=149.05g wool

[0204] 4g / min(O 3 )X2min=8g(O 3 )

[0205] 8g / 149.05gX100 = 5.37% owf O 3

[0206] The treated wool tops were needled and spun into hosiery yarns of 2 / 48Nm x twist Z500XS300, then knitted into a density with a cover factor C.F. equal to 0.41, and washed continuously for 1 hour and 3 hours on the Cubex shrinkage test equipment, and then , was subjected to a 5-hour pilling test on an ICI pilling tester, and the strength and elongation of the knitted yarn were also measured. In order to observe the modification state of the wool surfac...

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PUM

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Abstract

The present invention provides an animal fibers having improved shrink proofing and pilling resistance properties and method for preparation thereof. An animal fiber having excellent shrink proofing and pilling resistance and retaining its original water repellency is also provided. A method of treating animal fiber in which a surface layer part of animal fiber is primary-oxidized in advance with an oxidizer, and aqueous treatment liquid containing ozone in the form of ultrafine bubbles of 5 mu or less is allowed to collide against the fiber by blowing the liquid on the fiber in the aqueous treatment solution, and then, the fiber is treated with a reducing agent. Particularly, the above-mentioned method for treating animal fiber in which ultrafine bubbles of ozone are formed by using a line mixer. The method in which an apparatus which collects the ultrafine ozone bubbles in aqueous treatment liquid on the fiber is used so that the bubbles are not scattered out of a treatment reaction bowl.

Description

technical field [0001] The present invention relates to an animal fiber endowed with anti-shrink and anti-pilling and its preparation method. More specifically, the present invention relates to an animal fiber imparted with anti-shrinkage and anti-pilling without damage to the original excellent water repellency of the animal fiber and its preparation method. Background technique [0002] Animal fiber is a unique natural fiber that has a special texture depending on the breed of sheep, exhibits biodegradability, and has various excellent properties such as moisture absorption, moisture release, warmth retention, flame retardancy, and dyeing properties, and even Water repellency. It not only has proper fiber strength and elongation for durability and high wear resistance, but also is a special fiber from the perspective of fiber mechanical properties, so it has been favored for a long time. However, the felting properties during washing and the pilling properties derived fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B19/00D06B1/00D06M11/32D06M11/34D06M11/50D06M11/51D06M11/54
Inventor 市村恒梅原亮唐川忠士大岛邦裕中濑一博
Owner KURASHIKI BOSEKI KK
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