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Splicing manufacturing process of dual-density composite fiber felt

A technology of composite fiber felt and manufacturing process, which is applied in the direction of non-woven fabrics, textiles and papermaking, etc., can solve the problems of high cost, high material cost, unfavorable environmental protection, etc., and achieve high production efficiency, good interlayer adhesion and low cost saving effect

Inactive Publication Date: 2014-03-19
镇江立达纤维工业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. The cost of materials is high. Since the subsequent molding process needs to be heated, ordinary glues are easy to fail after bonding and lead to product delamination. Therefore, special glues with higher costs must be selected.
[0005] 3. The smell is strong, the glue always smells and will remain in the material, which is not conducive to environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A bonding manufacturing process for double-density composite fiber mats, comprising the steps of:

[0041] (1) Production of upper layer material: Produced on the felting production line with a surface density of 300g / m 2 After the single-layer fiber felt is rolled into a thickness of 3mm with a roll, it is rolled into a coil with a mandrel, measured at 30 meters per roll, and placed aside.

[0042] (2) Placement of the upper layer material: install the rolled upper layer material on the felting air-laid or carded-web production line with the feeding device before the output direction of the web-forming output curtain and the inlet of the oven, and clamp the coil material with a clamp The advanced winding core rod ensures that the coil can be unloaded while rotating.

[0043] (3) Production of lower layer materials and double-layer bonding and compounding: In the felting air-laid production line, after the raw materials are put in, the surface density of the finished p...

Embodiment 2

[0046] A bonding manufacturing process for double-density composite fiber mats, comprising the steps of:

[0047] (1) Production of upper layer material: Produced on the felting production line with a surface density of 1400g / m 2 After the single-layer fiber mat is rolled into a thickness of 10mm with a roll, it is rolled into a coil with a mandrel, measured at 50 meters per roll, and placed aside.

[0048] (2) Placement of the upper layer material: install the rolled upper layer material on the felting air-laid or carded-web production line with the feeding device before the output direction of the web-forming output curtain and the inlet of the oven, and clamp the coil material with a clamp The advanced winding core rod ensures that the coil can be unloaded while rotating.

[0049] (3) Production of the lower layer material and double-layer bonding and compounding: In the felting air-laid production line, after the raw materials are put in, the surface density of the finish...

Embodiment 3

[0052] A bonding manufacturing process for double-density composite fiber mats, comprising the steps of:

[0053] (1) Production of upper layer material: Produced on the felting production line with a surface density of 400g / m 2 After the single-layer fiber felt is rolled to a thickness of 3mm with a roll, it is rolled into a coil with a mandrel, measured at 50 meters per roll, and placed aside.

[0054] (2) Placement of the upper layer material: install the rolled upper layer material on the felting air-laid or carded-web production line with the feeding device before the output direction of the web-forming output curtain and the inlet of the oven, and clamp the coil material with a clamp The advanced winding core rod ensures that the coil can be unloaded while rotating.

[0055] (3) Production of lower layer materials and double-layer bonding and compounding: In the felting air-laid production line, after the raw materials are put in, the surface density of the finished produ...

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PUM

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Abstract

The invention relates to a splicing manufacturing process of dual-density composite fiber felt. The splicing manufacturing process comprises the steps as follows: (1) production of an upper-layer material, (2) placement of the upper-layer material, (3) production of a lower-layer material and double-layer splicing composition and (4) cooling and cutting. The dual-density composite fiber felt produced with the process is directly heated and spliced through a production line, so that the production efficiency is high; the interlayer adhesion is good, and the dual-density composite fiber felt is particularly suitable for follow-up heating molding; glue is not needed, so that the cost is saved, and the felt is odorless; and the material and leftover materials can be recycled, so that the process is environment-friendly.

Description

technical field [0001] The invention relates to a bonding and manufacturing process of a double-density composite fiber felt, which belongs to the field of new material processing. Background technique [0002] Fiber mats are generally used in automotive interiors as sound-absorbing or sound-insulating materials. Due to different use locations and functional requirements, fiber mats of different densities and thicknesses will be composited and bonded to form a double-layer material for compression molding. Double layers with different densities The synergistic effect makes it both sound-absorbing and sound-insulating. The current common methods have the following problems: [0003] 1. Low production efficiency. The specific process is to first cut the fiber mat into sheets according to the required size, then spray glue on the lower layer of material and then compound the upper layer of material. The compounded material must be heated in an oven for a proper time and then c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/541D04H1/559D04H1/732
Inventor 施群张花萍李强
Owner 镇江立达纤维工业有限责任公司
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