Multilayer and high-density heat insulation wadding sheet and preparation method thereof

A high-density, multi-layered technology, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of poor fit, general heat preservation effect, and rough hand feeling of clothes, and achieve good fit, warmth, and soft hand feeling Effect

Inactive Publication Date: 2019-01-25
GUANGZHOU ZHONGCHENG NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sprayed cotton has high bulkiness and good resilience, but the gaps between fibers are large. When there is wind or the temperature difference between indoor and outdoor is large, the air convection in the sprayed cotton is serious, so its thermal insulation effect is average and the hand feels Rough, the clothes made from it have poor fit and large volume, and because of the adhesive added to the glued cotton, it is not suitable for close-fitting clothing

Method used

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Examples

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preparation example Construction

[0020] A method for preparing a multi-layered, high-density thermal insulation flake, comprising the following steps:

[0021] 1) Fully mix ultrafine denier fibers or / and ultrafine denier special-shaped fibers, low melting point fibers with a melting point of 100-160°C, and ordinary fibers, and then open and clear them;

[0022] 2) Combing the opened and cleaned fibers into flakes, heating to 100-150°C, keeping warm for 1-30s, and performing single-layer heat setting to obtain flake fibers;

[0023] 3) Lay and form multi-layer sheet-like fibers, then heat to 140-200°C, keep warm for 1-20 minutes, conduct overall heat setting, and cut to obtain multi-layered, high-density thermal insulation flakes.

[0024] Preferably, the mass ratio of ultrafine denier fibers or / and ultrafine denier special-shaped fibers, low melting point fibers, and ordinary fibers in step 1) is 1:(0.05-5):(0.05-5).

[0025] Further preferably, the mass ratio of ultrafine denier fibers or / and ultrafine deni...

Embodiment 1

[0035] A multi-layered, high-density thermal insulation wadding, the preparation method of which is as follows:

[0036] 1) Ultrafine denier fibers (ultrafine denier anion fibers with a fiber fineness of 0.8D and a length of 51mm), low-melting fibers with a melting point of 130°C (skin-core composite spinning fibers with a fiber fineness of 2.0D and a length of 51mm), polyester The fiber (fiber fineness 1.1D, length 51mm) is fully mixed according to the mass ratio of 1:2:0.5, and then opened and cleaned;

[0037] 2) Combing the opened and cleaned fibers into flakes, heating to 120°C, keeping warm for 20s, and performing single-layer heat setting to obtain flake fibers;

[0038] 3) Lay and form multi-layer sheet-like fibers, then heat to 150°C, keep warm for 10 minutes, perform overall heat setting, and cut to obtain multi-layered, high-density thermal insulation flakes.

[0039] After testing, the thickness of the thermal insulation flake is 0.50cm, and the surface density is...

Embodiment 2

[0041] A multi-layered, high-density thermal insulation wadding, the preparation method of which is as follows:

[0042] 1) Ultrafine denier fibers (ultrafine denier far-infrared fibers with a fiber fineness of 1.1D and a length of 32mm), low-melting fibers with a melting point of 130°C (skin-core composite spinning fibers with a fiber fineness of 2.0D and a length of 51mm), poly Ester fiber (fiber fineness 1.1D, length 51mm) is fully mixed according to the mass ratio of 1:2.5:1.5, and then opened and cleaned;

[0043] 2) Carding the opened and cleaned fibers into flakes, heating to 130°C, keeping warm for 15s, and performing single-layer heat setting to obtain flake fibers;

[0044] 3) Lay and form multi-layer sheet-like fibers, then heat to 170°C, keep warm for 8 minutes, perform overall heat setting, and cut to obtain multi-layered, high-density thermal insulation flakes.

[0045] After testing, the thickness of the thermal insulation flake is 0.45cm, and the surface densi...

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Abstract

The invention discloses a multilayer and high-density heat insulation wadding sheet and a preparation method thereof. The preparation method of the heat insulation wadding sheet includes the steps: 1)sufficiently and uniformly mixing superfine denier fibers or / and superfine denier profiled fibers, low-melting-point fibers and common fibers, and performing opening and cleaning on mixture; 2) carding opened and cleaned fibers into a sheet, and heating the sheet to perform single-layer heat setting to obtain sheet fibers; 3) laying and forming the multilayer sheet fibers, heating the multilayersheet fibers to perform overall heat setting and cutting to obtain the heat insulation wadding sheet. The heat insulation wadding sheet is of a multilayer structure, high in density, good in heat insulation effect and wearing effect, soft and simple in preparation process, a single-layer wadding sheet net is thin, and fibers are fine.

Description

technical field [0001] The invention relates to a multi-layered, high-density thermal insulation wadding and a preparation method thereof. Background technique [0002] Warm floc is an important auxiliary material for making clothing, which can play a good heat insulation effect. Traditional thermal insulation sheets usually use natural filling materials such as cotton batting, wool, and down. Among these filling materials, down has the best warmth retention, followed by wool, and cotton batting is the worst. Thermal insulation made of cotton or wool is easy to absorb moisture and has poor resilience. After a period of use, its thermal performance will drop significantly, and it has been gradually eliminated. The thermal insulation flakes made of down are light in weight, have good resilience and good heat preservation effect, and are widely used in down jackets. However, down also has defects such as high price, easy drilling, easy to mold, and difficult to clean. With th...

Claims

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Application Information

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IPC IPC(8): D04H1/02D04H1/4374D04H1/4391D04H1/541
CPCD04H1/02D04H1/4374D04H1/4391D04H1/541
Inventor 罗湘军黄钊维钟敏丽
Owner GUANGZHOU ZHONGCHENG NEW MATERIALS TECH
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