Wool drafting and thinning technique

A process and drafting technology, applied in the field of wool stretching technology, can solve the problems of mechanical damage of wool fibers, affecting fiber properties, inconsistent movement of surface and core fibers, etc., to reduce mechanical damage, high production rate, and difficult The effect of slipping or breaking

Inactive Publication Date: 2013-01-23
魏立奇
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The drawing wool has a lower thinning rate;
[0005] 2) Wool fiber is susceptible to mechanical damage during the drafting process, which affects the performance of the fiber;
[0006] 3) The fiber is easy to break during the stretching process, and the joint after the end is broken is difficult;
[0007] 4) During the drafting process of the wool top, the surface layer and the core fiber movement are inconsistent, and the drafting is uneven;
[0009] 6) Wool strips tend to slip during stretching

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A wool fiber refinement process, the process flow is as follows:

[0037] 1. Arranging raw wool into uniform and continuous thin strips or flake-like wool fiber aggregates, immersing in 60°C, 5wt% sodium bisulfite solution for 20 minutes, washing, so that the secondary bonds between the main chains of wool fiber macromolecules, the salt form Spatial transverse linkages such as bonds and hydrogen bonds are opened, so that the wool fiber can be stretched;

[0038] 2. The wool fiber aggregates treated in step 1 pass through a 20wt% polyvinyl alcohol colloid tank, and under the extrusion and traction of a pair of nip rollers, the wool fiber aggregates are evenly coated with polyvinyl alcohol colloids;

[0039] 3. The wool aggregate after being coated with polyvinyl alcohol colloid passes through the Glauber's salt bath tank with a concentration of 420g / l at 40-45°C, and the colloid is solidified under the condition that the wool fiber aggregate has tension;

[0040] 4. In ...

Embodiment 2

[0044] A wool fiber refinement process, the process flow is as follows:

[0045] 1. Arranging raw wool into uniform and continuous thin strips or flake-like wool fiber aggregates, immersing in 60°C, 5wt% sodium bisulfite solution for 20 minutes, washing, so that the secondary bonds between the main chains of wool fiber macromolecules, the salt form Spatial transverse linkages such as bonds and hydrogen bonds are opened, so that the wool fiber can be stretched;

[0046] 2. The wool fiber aggregates treated in step 1 pass through a 14wt% polyvinyl alcohol colloid tank, and under the extrusion and traction of a pair of nip rollers, the wool fiber aggregates are evenly coated with polyvinyl alcohol colloids;

[0047] 3. The wool aggregate after being coated with polyvinyl alcohol colloid passes through the Glauber's salt bath bath with a concentration of 420g / l, and the colloid is solidified under the condition that the wool fiber aggregate has tension;

[0048] 4. In the Glauber...

Embodiment 3

[0053] 1. Arranging raw wool into uniform and continuous thin strips or flake-like wool fiber aggregates, immersing in 60°C, 5wt% sodium bisulfite solution for 20 minutes, washing, so that the secondary bonds between the main chains of wool fiber macromolecules, the salt form Spatial transverse linkages such as bonds and hydrogen bonds are opened, so that the wool fiber can be stretched;

[0054] 2. The wool fiber aggregates treated in step 1 pass through a 17wt% polyvinyl alcohol colloid tank, and under the extrusion and traction of a pair of nip rollers, the wool fiber aggregates are evenly coated with polyvinyl alcohol colloids;

[0055] 3. The wool aggregate after the polyvinyl alcohol colloid is passed through the NaOH bath tank with a concentration of 30wt%, and the colloid is solidified under the condition that the wool fiber aggregate has tension;

[0056] 4. Dry hot drawing: the wool aggregate is heated to 120-140°C through multiple drawing rollers heated by electric ...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a wool drafting and thinning technique. The wool drafting and thinning technique comprises the following steps of: pre-treating raw wool to obtain a wool fiber aggregate of which the wool fibers have drafting performance, and then performing drafting, thinning and shaping to obtain the drafted and thinned wool, wherein the wool fiber aggregate is subjected to colloid cladding after the pretreatment and before the drafting and the thinning; and the colloid is not chemically reacted with the wool, has elasticity and tensile strength, and is easy to clean. By the wool drafting and thinning technique, because the colloid perfectly holds the wool fibers, the fibers can be efficiently drafted, and further, mechanical damage to the fibers is reduced during the drafting process; and when a fiber breaks in some point, a drafting effect of other parts of the fiber is not affected, the phenomenon of non-uniformity of fibers of an inner layer and an outer layer can not be caused, the length requirement for the raw material fibers is low, and even, short fibers can be effectively drafted and thinned.

Description

technical field [0001] The invention relates to a fiber stretching process, in particular to a wool stretching process. Background technique [0002] At present, the wool stretching process researched at home and abroad is basically as follows: the fiber aggregate is firstly wetted, and then enters the stretching device, and the stretched fiber aggregate undergoes a certain shape to obtain stretched and refined wool. The biggest difference of the existing drafting technology lies in the method of holding the wool fiber: the two ends of the wool fiber are clamped by the pair of nip rollers that are very close to each other in the non-twist drafting to achieve the effect of holding. The speed of the roller is fast, so as to achieve the purpose of drafting; twisted drafting is to twist the top of the wool, and through the cohesion and friction between the wools, the holding of more wool during the drafting process is realized. [0003] The existing wool stretching process has ...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D02J1/22D06B3/02D06M15/333D06M101/12
Inventor 魏立斌魏立奇黄德贤周婷
Owner 魏立奇
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap