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A polylactic acid colored long slub yarn and drawing device and processing method for processing thereof

A processing method and technology of polylactic acid, applied in the directions of yarn, spinning machine, textile and papermaking, etc., can solve the problems of easy hardening color fastness and high production cost of yarn, and achieve various styles, low processing cost, and yarn. Stable performance

Active Publication Date: 2021-01-01
WUXI HANUO TEXTILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a polylactic acid colored long slub yarn, which can solve the problem that the existing polylactic acid colored long slub yarn needs to be made by post-dyeing polylactic acid fibers or yarns, causing the yarn to easily The problem of low color fastness when hardening and dyeing dark colors can also solve the problem of high production cost of the existing polylactic acid colored long slub yarn. For this reason, the invention also provides a polylactic acid colored long slub yarn processing Processing method with drawing frame and long slub yarn

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A polylactic acid colored long slub yarn and drawing device and processing method for processing thereof
  • A polylactic acid colored long slub yarn and drawing device and processing method for processing thereof
  • A polylactic acid colored long slub yarn and drawing device and processing method for processing thereof

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Experimental program
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Effect test

Embodiment 1

[0035] Step 1, raw material preparation, using the conventional dope coloring process to prepare 4 colors of polylactic acid colored staple fibers, namely white, red, yellow and black;

[0036] Step 2, clearing, respectively pass the polylactic acid colored short fibers of various colors through the cotton opening machine to make cotton laps of a certain size, and the dry basis weight of the cotton laps is 380 g / m;

[0037] Step 3, carding, carding the cotton rolls of various colors to make slivers of various colors, the dry weight of the carding sliver is controlled at 20 g / 5m;

[0038] Step 4, head drawing, the raw slivers of various colors are passed through the head and made into pre-drawing, and the dry weight of the pre-drawing is controlled at 19 g / 5m;

[0039] Step 5, final merging, press 2 pre-drawing bars red, 2 white, 2 black, and 2 yellow Figure 4 As shown, the slivers of different colors are fed into the cotton feeding roller 11 in parallel at the same time, and...

Embodiment 2

[0045] Step 1, raw material preparation, using the conventional dope coloring process to prepare polylactic acid colored staple fibers in three colors, namely red, blue, and pink, and then prepare white tencel fibers;

[0046] Step 2, cleaning, respectively pass the colored polylactic acid staple fibers and tencel fibers of various colors through the cleaning opener to make cotton laps of a certain size, and the dry basis weight of the cotton laps is 365 g / m;

[0047] Step 3, carding, carding the cotton laps of various colors to make slivers of various colors, the dry weight of the carding sliver is controlled at 19 g / 5m;

[0048] Step 4, head drawing, the raw slivers of various colors are passed through the head and made into pre-drawing, and the dry weight of the pre-drawing is controlled at 17.5g / 5m;

[0049] Step 5, final merging, press 2 pre-drawn bars red, 2 blue, 2 pink, and 2 white Figure 4 As shown, the slivers of different colors are fed into the cotton feeding rol...

Embodiment 3

[0055] Step 1, raw material preparation, using the conventional dope coloring process to prepare polylactic acid colored staple fibers of two colors, namely red and black, and then prepare white polyester fibers;

[0056] Step 2, cleaning, the fibers of various colors are respectively passed through the cleaning and opening machine to make cotton laps of a certain size, and the dry basis weight of the cotton laps is 380 g / m;

[0057] Step 3, carding, carding the cotton rolls of various colors to make slivers of various colors, the dry weight of the carding sliver is controlled at 20 g / 5m;

[0058] Step 4, head drawing, the raw slivers of various colors are passed through the head and made into pre-drawing, and the dry weight of the pre-drawing is controlled at 18.3g / 5m;

[0059] Step 5, final slitting, feed 2 red slivers, 2 black slivers, and 2 white slivers in parallel to the feeding roller at the same time, the slivers of different colors are separated by a slitter, and then...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a polylactic acid colorful long bunchy yarn, can solve the problems that in an existing polylactic acid colorful long bunchy yarn, polylactic acid fibers or yarns need to be dyed in the later period, yarns are easily hardened, and when the dyestuff with deep color is dyed, the color fastness is low, and meanwhile can further solve the problem that the production cost of thepolylactic acid colorful long bunchy yarn is high. At least two fibers in different colors are combined into a bamboo section strip at the tail, and then the bamboo section strip is spun by a spinningtechnology, all fibers are polylactic acid fibers or polylactic acid fibers and other textile fibers, and the polylactic acid fibers are polylactic acid colorful short fibers prepared by dying through a stock solution. Therefore, the invention further provides a drawing device for processing the polylactic acid colorful long bunchy yarn and a long bunchy yarn processing method.

Description

technical field [0001] The invention relates to the field of textile materials and processing thereof, in particular to a polylactic acid colored long slub yarn and a drawing device and processing method for processing the same. Background technique [0002] Polylactic acid is polymerized from lactic acid fermented from starch-rich crop products (such as corn, potato, sugarcane, cassava, etc.). The fabric woven with it has skin-friendly, breathable, natural antibacterial, good It has the characteristics of biocompatibility, low calorific value of combustion, no harmful substances, and can be completely degraded into carbon dioxide and water in 6-12 months under the action of composting. It is a new textile environmental protection material in the new era. [0003] However, there are still relatively few polylactic acid colored long slub yarns on the market. On the one hand, it is necessary to use disperse dyes to dye the polylactic acid fibers first when producing polylactic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/34D02G3/04D01H5/78D01H5/36
CPCD01H5/36D01H5/78D02G3/04D02G3/34D02G3/346D10B2331/04
Inventor 孙德连冯培生陈慧
Owner WUXI HANUO TEXTILE TECH
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