Supercharge Your Innovation With Domain-Expert AI Agents!

Sizing method of polylactic acid fiber yarn

A technology of polylactic acid fiber and sizing method, which is applied in fiber type, fiber treatment, textiles and papermaking, etc. It can solve the problems of polylactic acid fiber yarn quality deterioration and poor degradability of sizing, and reduce the amount of chemicals used , Avoid the effects of poor quality and low sizing rate

Pending Publication Date: 2021-10-12
JIANGSU YUEDA HOME TEXTILE
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to focus on the traditional sizing method, or the high temperature will cause the quality of polylactic acid fiber yarn to deteriorate after being exposed to high temperature; and / or the size used is poor in degradability, and the sizing process has caused a certain environmental pressure on the environment To solve the problem, provide a sizing method for polylactic acid fiber yarn at low temperature and low sizing rate

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sizing method of polylactic acid fiber yarn
  • Sizing method of polylactic acid fiber yarn
  • Sizing method of polylactic acid fiber yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] According to the slurry formula ratio of Example 1 shown in Table 1, the raw materials were weighed for subsequent use. Add 5 grids of water into the high pressure barrel (the height in the high pressure barrel is divided into 10 grids), and add the weighed potato starch, hydrolyzed oxidized starch, and polypropylene slurry into the high pressure barrel in turn under the low-speed stirring condition of 300r / min. , wax flakes, antistatic agent and antifungal agent, continue to stir at a low speed of 300r / min for 7.5min, then add the remaining water, close the high-pressure barrel and carry out high-speed stirring at 600r / min, when the steam pressure is below 1.5MPa and the temperature in the barrel Under the condition of 100°C-110°C, boil the pulp for 17.5 minutes and then transfer it to the slurry supply tank. Under the condition of stirring at a low speed of 300r / min, adjust the solid content, temperature and viscosity of the slurry so that the solid content of the prep...

Embodiment 2

[0049] According to the slurry formula ratio of Example 2 shown in Table 1, the raw materials were weighed for subsequent use. Add water at a height of 5 grids to the high-pressure barrel, and add the weighed potato starch, hydrolyzed oxidized starch, polypropylene slurry, wax flakes, antistatic agent and anti-mildew Continue to stir at a low speed of 300r / min for 5.0min, then add the remaining water, close the high-pressure barrel and carry out high-speed stirring at 600r / min, boil the pulp under the conditions of steam pressure below 1.5MPa and temperature in the barrel of 100°C to 110°C After 15.0 minutes, it was transferred to the slurry supply tank, and the solid content, temperature and viscosity of the slurry were adjusted under the low-speed stirring condition of 300r / min, so that the solid content of the prepared slurry was 6.5%, the temperature was 65°C, and the viscosity was 5.0s. The pH value is 7.0, and the slurry after slurry adjustment is obtained.

[0050] Con...

Embodiment 3

[0058] According to the slurry formula ratio of Example 3 shown in Table 1, the raw materials were weighed for subsequent use. Add water at a height of 5 grids to the high-pressure barrel, and add the weighed potato starch, hydrolyzed oxidized starch, polypropylene slurry, wax flakes, antistatic agent and anti-mildew Continue to stir at a low speed of 300r / min for 10.0min, then add the remaining water, close the high-pressure barrel and carry out high-speed stirring at 600r / min, boil the pulp under the conditions of steam pressure below 1.5MPa and temperature in the barrel of 100°C to 110°C After 20.0 minutes, it was transferred to the slurry supply tank, and the solid content, temperature and viscosity of the slurry were adjusted under the low-speed stirring condition of 300r / min, so that the solid content of the prepared slurry was 7.5%, the temperature was 75°C, and the viscosity was 6.0s. The pH value is 8.0, and the slurry after slurry adjustment is obtained.

[0059] Co...

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

PropertyMeasurementUnit
elongationaaaaaaaaaa
Login to View More

Abstract

The invention provides a low-temperature and low-sizing-percentage sizing method for polylactic acid yarn. The sizing method comprises a size mixing step, a sizing step, a drying step and a waxing step. In the size mixing step, size mixing is conducted according to a formula ratio of size, so that the solid content of the prepared size is 6.5%-7.5%, the temperature is 65-75 DEG C, the viscosity is 5-6 s, and the pH value is 7-8; and the size comprises the following components of potato starch, hydrolyzed oxidized starch, polypropylene size, wax sheets, an antistatic agent, a mildew preventive and water. By adjusting a formula of the size and the sizing method, low-temperature sizing is achieved, the problem that the hand feeling of a fabric becomes hard after polylactic acid fibers are subjected to high-temperature denaturation is solved, the low sizing percentage of 7%-8% is achieved, and therefore the pollution to the environment in the desizing process is reduced.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a low-temperature and low-sizing method for sizing polylactic acid yarns. Background technique [0002] With the continuous development of society and economy, consumers' demand for fast, convenient and high-quality lifestyle has led to the continuous acceleration of the development of earth resources, and the environmental and energy problems such as global warming and the depletion of oil resources have become more and more severe. People use petroleum and other resources to synthesize polymer compound products. While providing convenient life, the problems of white pollution and microplastic particle pollution caused in the process of production, consumption and disposal are becoming increasingly prominent, which is harmful to human living environment and health. had a serious impact. Therefore, non-petroleum-based degradable materials have attracted more and more attention ...

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): D06M15/11D06M15/227D06M13/02D06M101/32
CPCD06M15/11D06M15/227D06M13/02D06M2101/32D06M2200/40
Inventor 孙仁斌王成军管井虎孙万孟严以登袁道春
Owner JIANGSU YUEDA HOME TEXTILE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com