Recyclable polylactic acid functional quilt easy to recycle and preparation method thereof

A polylactic acid and functional technology, which is applied in the field of quilt preparation, can solve the problems of inefficiency such as inability to recycle, recycle and reuse, and achieve the effects of reducing energy consumption, improving efficiency, and outstanding effects

Pending Publication Date: 2022-05-31
润益(嘉兴)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The chemical recycling of polylactic acid fibers is to prepare waste polylactic acid fiber quilts into refined grade lactide. The quilts made of existing polylactic acid fibers usually contain a large amount of other fibers. When recycling polylactic acid fibers, other fibers need to be removal, making recycling inefficient or even impossible

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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  • Recyclable polylactic acid functional quilt easy to recycle and preparation method thereof
  • Recyclable polylactic acid functional quilt easy to recycle and preparation method thereof
  • Recyclable polylactic acid functional quilt easy to recycle and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] combine Figure 1 to Figure 3 , the present invention is described in detail. The present invention relates to a recyclable and easily recyclable polylactic acid functional quilt and a preparation method thereof. The functional quilt includes a quilt cover 1 and a quilt core 2, and the grammage range of the polylactic acid woven fabric is 90- 160 grams per square meter. The fineness of the polylactic acid spun yarn is 28-50 lbs; the polylactic acid staple fiber used in the polylactic acid spun yarn has a fineness of 0.8-1.5D and a length of 38-51mm. Polylactic acid filaments are selected as warp yarns, so that sizing can not be carried out during weaving, so that desizing is not required, and the weaving efficiency is improved. When using polylactic acid woven fabrics for sewing quilt covers, the sewing used is also made of polylactic acid. If the zipper is also used in the quilt cover, the material used for the zipper is polylactic acid resin, so that the entire qui...

Embodiment 2

[0039] combine Figure 4 , to describe this embodiment in detail. A recyclable and easily recyclable polylactic acid fiber functional quilt and its preparation method involved in this embodiment differ from Embodiment 1 in that:

[0040] The short polylactic acid fibers constituting the polylactic acid fiber batt contain an airgel component 4 inside and are hollow and have a hollow portion 5 . In the polylactic acid short fibers that make up the polylactic acid fiber flakes, the content of the airgel powder is 0.4-1.5%, specifically 0.52%, by weight. Specifically, the airgel powder in this embodiment is silica airgel powder. It can also be other airgel powders. The airgel powder has a diameter of 0.1-20 microns and a porosity greater than 90%. The thermal conductivity of the silicon dioxide airgel powder is lower than 0.02w / m·K, and has good thermal insulation performance.

[0041] The test result of the thermal conductivity of the polylactic acid multifunctional substrate ...

Embodiment 3

[0043] combine Figure 5 , to describe this embodiment in detail. The recyclable and easily recyclable polylactic acid fiber functional quilt and its preparation method involved in this embodiment differ from Embodiment 1 in that:

[0044] In this embodiment, the quilt core 2 is made by quilting three layers of polylactic acid fiber upright batting. The reason why three layers are adopted is to improve the thickness of the quilt core 2 and improve the weight and warmth retention of the quilt. The test result of the thermal conductivity of the polylactic acid multifunctional substrate prepared in this embodiment is 0.025W / (m·k), which has a good thermal insulation effect.

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Abstract

The invention discloses a recyclable easy-to-recycle polylactic acid functional quilt and a preparation method thereof, the functional quilt comprises a quilt cover and a quilt core, and the quilt cover is woven by 100% polylactic acid fibers; warp yarns of the fabric are twisted polylactic acid filaments, and weft yarns of the fabric are polylactic acid staple fiber yarns or polylactic acid filaments; the quilt core is made of 100% polylactic acid fiber flocculus; the polylactic acid fiber flocculus is a fiber net formed by polylactic acid short fibers, bonding points are distributed in the polylactic acid fiber flocculus, and the bonding points are polylactic acid bi-component fibers; the polylactic acid fiber flocculus comprises a vertical cotton layer with S-shaped fibers. The prepared functional health quilt has multiple functions of softness, warmth retention, bacteriostasis, mite prevention, breathability, dryness, dryness, no sunburn, no peculiar smell, nonflammability, less smoke, no toxicity, extinguishment after being away from fire and the like, and is easy to chemically recover and convert into lactide for reuse, and as the polylactic acid fiber is low in molecular weight and concentrated in distribution, the conversion energy consumption of the polylactic acid fiber is reduced by more than one third compared with the original lactide.

Description

technical field [0001] The invention relates to a preparation method of a quilt, in particular to a recyclable and easily recyclable polylactic acid fiber functional quilt and a preparation method thereof. Background technique [0002] Polylactic acid fiber is made from lactic acid-rich green plants such as old corn, cassava, and straw, which are fermented by probiotics to produce lactic acid, and then polycondensed and spun. Polylactic acid fiber is a kind of bio-based chemical synthetic fiber that can be planted and recycled, and the waste does not pollute the environment, and can be naturally degraded in nature. It can be decomposed into carbon dioxide and water by microorganisms in soil or seawater. When burning, it has less smoke and no poisonous gas, and it will extinguish immediately after leaving the fire. It will not cause pollution. It is a green and sustainable ecological fiber. As a new type of bio-based and renewable biodegradable material, polylactic acid fibe...

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): D03D15/283D03D15/50D04H1/02D04H1/435D04H1/4391D04H1/4382A47G9/02
CPCD03D15/283D03D15/50D04H1/02D04H1/435D04H1/4391D04H1/4382A47G9/0207A47G9/02D10B2331/04D10B2401/13Y02P70/62
Inventor 尚佳孙莘尚晓天
Owner 润益(嘉兴)新材料有限公司
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