Technology of continuous producing polyurethane sponge bra cups

A polyurethane sponge, polyurethane technology, applied in bras, clothing, applications, etc., can solve the problems of polluting the fabric layer, polluting the appearance of the mold, etc.

Inactive Publication Date: 2005-03-09
薛攀霆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Please refer to Oertel, G. "Polyurethane Handbook" (ISBN 0-02-948920-2, Hanser Publisher, 1985, P175), butylated hydroxytoluene (BHT) is the most commonly used antioxidant in polyol products, but The residue of the BHT will sublimate during the heat setting pressing process of the bra cup and pollute the surface of the mold. Therefore, after repeated production, the antioxidant accumulated on the surface of the mold may be mixed with the remaining in the fabric layer. Basic dyes further react to stain the fabric layer

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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  • Technology of continuous producing polyurethane sponge bra cups
  • Technology of continuous producing polyurethane sponge bra cups
  • Technology of continuous producing polyurethane sponge bra cups

Examples

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Embodiment Construction

[0026] Please refer to figure 1 and figure 2 Shown, this process provides a kind of polyurethane foam material (step A), forms polyurethane foam (urethane frothmixture) 11 (step B) through chemical foaming or mechanical foaming, pours this polyurethane foam 11 to the conveyer belt of a moving state The bottom fabric layer 10 on the 2 is scraped and coated with the polyurethane foam 11 at a predetermined height with a suitable coating device 1 (such as a scraper), so that the thickness of the polyurethane foam 11 formed meets the polyurethane foam layer (urethane froth mixture) of design requirements. layer) 101 (step C); the polyurethane foam layer 101 covered on the bottom fabric layer 10 passes through the radiation zone 3, and the polyurethane foam layer 101 is heated by radiation to promote the generation of a solidified layer 102 on the surface of the polyurethane foam layer for Accelerate the polymerization of the polyurethane foam 11, and avoid surface bubbles and shr...

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

A process for preparing the polyurethane sponge bowls of bra includes such steps as proportionally mixing isocyanate, polyol, foaming agent and catalyst, stirring, directly pouring the mixture on fabric layer, reacting to form polyurethane foam material, sticking another fabric layer, and die pressing.

Description

technical field [0001] The invention relates to a brassiere cup process, in particular to a polyurethane foam brassiere cup molding process, and the thickness of the apex of the brassiere cup is greater than the thickness of the surrounding part of the brassiere cup. Background technique [0002] The elastic material required by the bra cup process must maintain its original shape under different states and activities of the wearer, especially the shape and elasticity of the bra cup, which cannot be affected by washing. [0003] The known bra cup liner is made of polyester synthetic fiber material and densely woven with different thicknesses. It has been practiced for many years. The known technology cannot produce the design requirement that the apex is thick and the periphery is thin. Because the fibers of the bra cup are not fixed in the same position, the washability of the bra cup is reduced. In order to overcome the above-mentioned problem that the thickness of the top...

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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IPC IPC(8): A41C3/14B29C44/14
Inventor 薛攀霆
Owner 薛攀霆
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