Cationic dyed mixed-fibre processed filament and its production

A production method, cationic technology, applied in the direction of conjugated synthetic polymer artificial filament, etc., can solve the problems of process extension, unsatisfactory, yarn fineness increase, etc., and achieve good dyeing effect

Inactive Publication Date: 2007-01-17
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This single polyester coarse detail yarn product is far from meeting people's requirements
[0004] In actual production, mixed fibers can also be combined by selecting two kinds of yarns with different dyeing properties, and then weaving a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1:

[0020] 50% by weight of cationic dyeable PET and 50% by weight of ordinary PET are passed through different micropores of the same spinneret during spinning to obtain concentric mixed filaments with the above weight ratio;

[0021] The mixed fiber yarn obtained above is subjected to false twist processing. During false twist processing, the yarn processing speed is 500m / min, the hot needle temperature HP: 80°C, the draft multiple ID before and after the hot needle: 1.45, and the total draft multiple TD: 1.71, Hot plate temperature HT: 200℃. The normal polyester filament part of the obtained product is in the form of coarse and fine details in the length direction.

[0022] The obtained thick and small fancy yarn has a tenacity of 3.73 cN / dtex, an elongation of 14.5%, a CV% of 2.02%, and a U% of 1.84%. After processing, the coarse and detailed fancy yarns are dyed after knitting, the cationic dye is black, and the disperse dye is yellow, and three colors of dark...

Example Embodiment

[0023] Example 2:

[0024] 70% by weight of cationic easy-dyeable PET and 30% by weight of ordinary PET are passed through different micropores of the same spinneret during spinning to obtain the group-type mixed fiber yarn with the above-mentioned weight ratio;

[0025] The mixed fiber yarn obtained above is subjected to false twist processing. During false twist processing, the yarn processing speed is 350m / min, the hot needle temperature HP: 75°C, the draft multiple ID before and after the hot needle: 1.28, and the total draft multiple TD: 1.60, hot plate temperature HT: 180℃. The normal polyester filament part of the obtained product is in the form of coarse and fine details in the length direction.

[0026] The obtained thick and small fancy yarn has a strength of 3.33 cN / dtex, an elongation of 20.2%, a CV% of 2.3%, and a U% of 1.74%. After processing, the coarse and detailed fancy yarns are dyed after knitting, the cationic dye is blue, and the disperse dye is red, and three...

Example Embodiment

[0027] Example 3:

[0028] 30% by weight of cationic dyeable PET and 70% by weight of ordinary PET are passed through different micropores of the same spinneret during spinning to obtain concentric mixed filaments with the above weight ratio;

[0029] The mixed fiber yarn obtained above is subjected to false twist processing with incomplete drafting. During false twist processing, the total draft ratio is 2.4, the hot needle temperature during false twist processing is 45 ℃, and the draft ratio before and after the hot needle is 1.6 , The hot plate temperature is 150℃. The normal polyester filament part of the obtained product is in the form of coarse and fine details in the length direction.

[0030] The obtained thick and small fancy yarn has a tenacity of 2.89 cN / dtex, an elongation of 18.7%, a CV% of 2.2%, and a U% of 1.56%. After processing, the coarse and detailed fancy yarns are dyed after knitting, the cationic dye is blue, and the disperse dye is red, and three colors of ...

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Abstract

The present invention discloses a cationic dyeable commingled twitty processing yarns and its production process. The commingled components are composed of cationic dyeable filament, and ordinary polyester filament which has alternated twits. The production process includes spinning with cationic dyeable polyethylene terephthalate (PET) chip and common PET chip through different micropores of the same spinneret to produce commingled yarn, and false-twisting with incomplete drafting of the commingled yarn to obtain the product. This invention fully utilizes the strong points of different processing method of fancy yarns and produces commingled grey yarn via one-step spinning for false twisting. The product in this invention has a good dyeing result. Three colors can be acquired by incubating common disperse dyes with cationic dyes when dyeing the produced yarns.

Description

Technical field: [0001] The invention relates to a mixed fiber processed yarn and a processing method thereof. Background technique: [0002] At present, there are many kinds of fancy yarns. There are two traditional processing methods. One is to use yarns of the same or different components or yarn counts to form fancy effects through special yarn forming methods such as wrapping, compounding, and core wrapping. The other is to form fancy yarns through special dyeing methods such as segment dyeing, printing and dyeing, etc. These products have their own characteristics and form their own styles. However, these yarns are more versatile, the processing technology is complicated, and the appearance effect has certain limitations. [0003] There are also fancy threads developed using the stretch properties of polyester on the market. The stretching mechanism of polyester is a thin-neck stretching mechanism. When the temperature and stretching force during the stretching proce...

Claims

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Application Information

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IPC IPC(8): D01F8/14
Inventor 刘同娟喜多川恒光石井正树
Owner TORAY FIBER RES INST(CHINA) CO LTD
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