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Functional woolen sweater with modified polyester composite filaments and preparation method thereof

A composite filament, modified polyester technology, applied in the direction of conjugated synthetic polymer rayon filament, conductive/antistatic filament manufacturing, rayon manufacturing, etc., can solve the problem of poor chemical stability, long processing flow, elastic fabric Easy to relax and other problems, to achieve the effect of excellent composite performance, high cost performance, and controllable elasticity

Pending Publication Date: 2022-01-28
JIANGSU JIANLU WOOLEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of elastic fiber application is: it cannot be used as bare silk, and it must be covered with other fibers as a core yarn to have practical value; it needs special core yarn equipment to process, and the processing process is long and the elasticity is difficult to control Uniform; at the same time, this type of elastic fabric has the disadvantages of easy relaxation and poor chemical stability when used repeatedly
The functions obtained after finishing, on the one hand, are difficult to last, on the other hand, they will affect other performances

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The invention provides a technical solution: a method for preparing a functional woolen bottom of a modified polyester composite filament, and the specific steps are as follows:

[0024] (1) Preparation of composite polyester filament: Polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) are used in a composite ratio of 60 / 40 to obtain a fineness of 65D composite white silk; or add PET-based masterbatch and PTT-based masterbatch respectively in the spinning process to obtain composite yarn with the same fineness range and dope coloring;

[0025] (2) Yarn forming method: wrap the composite white silk or dope-dyed composite yarn in step (1) and 680Z twist / m 48Nm / 2100% wool spun yarn on the spinning frame, and twist to obtain a twist of 380S / m doubling yarn; control the doubling tension of wool yarn to 4.82g, and the doubling tension of filament to 2.32g, so that the composite white silk or composite yarn is in a state of straightening and not stretch...

Embodiment 2

[0030] The invention provides a technical solution: a method for preparing a functional woolen bottom of a modified polyester composite filament, and the specific steps are as follows:

[0031] Select functional modified PET and PBT polyester composite filament: slice PET with a viscosity of 0.8, slice PBT with a viscosity of 1.4, the fineness of the modified PET and PBT polyester composite filament is within the range of 330dtex, and the strength 2.0cN / dtex; Put them into different melting boxes respectively, and mix functional masterbatches into the corresponding melting boxes respectively. Functional masterbatches include antibacterial masterbatches, antistatic masterbatches, anti-permeable masterbatches and Quick-drying masterbatch. Through the respective spinning channels to the spinneret, extruded side by side to obtain composite white silk and wool or wool blended spun yarn, the composite ratio is 70 / 30;

[0032] Spinning: The composite white silk and wool or wool blen...

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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PUM

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Abstract

The invention discloses a functional woolen sweater with modified polyester composite filaments and a preparation method thereof. PET and PTT polyester composite filaments and wool or wool blended spun yarns are doubled to form composite yarns serving as a core, and the PET and PTT polyester composite filaments are stock solution colored or white self-crimping filaments; and the woolen sweater has 5-40% tensile elasticity in the weft direction. The woolen sweater which has lasting elasticity, controllable elasticity and antibacterial, anti-permeable, antistatic and quick-drying functions and can be subjected to piece dyeing can be provided, the problem that an existing woolen sweater is difficult to have functions and elasticity at the same time is solved, and the functional woolen elastic fabric which has various excellent compound properties and high cost performance is realized.

Description

technical field [0001] The invention relates to the technical field of new textile materials, in particular to a functional sweater of modified polyester composite filament and a preparation method thereof. Background technique [0002] Worsted wool knitting yarn is usually dyed by strip dyeing and then combed to achieve fiber dyeing, top color mixing, and spinning. This long-process color spinning process leads to a long process of R&D and proofing, and it is relatively difficult to realize different colors of the same sweater. [0003] The main raw material of woolen sweater is wool short fiber, and the surface is covered with more or less scale layers, which makes its reflective performance for visible light very different from that of smooth synthetic fiber filaments, making synthetic fiber filaments difficult to use. In woolen sweaters, even dope-dyed filaments have the risk of having a different shade from wool fibers, resulting in color blooms and significant differe...

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 Applications(China)
IPC IPC(8): D04B1/24D04B1/14D04B1/18D04B1/12D01F8/14D01F1/10D01F1/09D06P1/38D06P3/82A41D1/04A41D31/04A41D31/26A41D31/30
CPCD04B1/246D04B1/14D04B1/18D04B1/12D01F8/14D01F1/103D01F1/09D01F1/10D06P1/38D06P3/8214A41D1/04A41D31/30A41D31/26A41D31/04D10B2211/02D10B2331/04D10B2401/16D10B2401/13D10B2401/061
Inventor 刘伟肖红姜爱娟代国亮杨辰辉陈文娟
Owner JIANGSU JIANLU WOOLEN