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Transfer method for glueing spunbonded nonwovens

A technology of spun-bonded nonwovens and transfer method, which is applied in the direction of chemical instruments and methods, layered products, lamination devices, etc., which can solve the problems of irregular bonding points, large bonding area, hard hand feeling, etc. The effect of softness and small bonding area

Inactive Publication Date: 2012-02-15
江阴金凤特种纺织品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. ------ There are irregular bonding points between the two materials, the bonding area is large, and the hand feels hard

Method used

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  • Transfer method for glueing spunbonded nonwovens
  • Transfer method for glueing spunbonded nonwovens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] see figure 1 , the method for gluing spunbond nonwovens by transfer method that the present invention relates to, said method includes unwinding, transfer gluing, bonding and drying and winding processes,

[0043] Step 1. Unwind

[0044] The spunbonded nonwoven fabric and breathable film are respectively placed on two unwinders, and the spunbond nonwoven fabric and breathable film are rotated and unrolled at the same time. The unwinder adopts a constant tension control system to ensure that the fabric surface tension is evenly controlled throughout the process.

[0045] Step 2. Transfer gluing

[0046] The transfer gluing system consists of a transfer pattern roller, a scraper and a pressure roller. The transfer pattern roller is an engraved roller with several concave points on the roller surface. The pattern on the final product is formed by the glue in the concave points of the pattern roller. . The lower part of the transfer pattern roller is immersed in the glue...

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Abstract

The invention relates to a transfer method for glueing spunbonded nonwovens. Spunbonded nonwovens and a ventilated membrane are placed at two uncoiling machines respectively and are rotating simultaneously for uncoiling. A transfer gluing system comprises a transfer embossing roll, a scraper and pressure rollers; the transfer embossing roll is an engraving roll with a plurality of pits engraved on a roll surface, and a lower part of the transfer embossing roll immerses into a glue tank and rotates continuously; the scraper is a device parallel to the transfer embossing roll and arranged behind the transfer embossing roll to scrape superfluous glue on the transfer embossing roll surface. The transfer embossing roll with scraped surface is closely bonded with the ventilated membrane; under stitching effect of the pressure roller above the transfer embossing roll, glue in the pits of the transfer embossing roll transfers to a surface of the ventilated membrane. The ventilated membrane with glue and the spunbonded nonwovens are stitched by a pressure roller above a drying cylinder and attached on a drying cylinder surface. The glue is solidified during the period, and solidified gluedspunbonded nonwovens are rolled by a winder.

Description

technical field [0001] The present invention relates to a method for bonding spunbond (SF) nonwovens by transfer method. It belongs to the technical field of non-woven fabric production. Background technique [0002] Before the present invention is made, glued spunbond nonwoven fabric is to adopt hot melt adhesive spraying method in the past. Its hot melt adhesive is to melt the surface of the sprayed material by heating, and then cool and solidify to bond the two materials together. The glue plays a bonding role by changing the physical form. [0003] The main components of hot melt adhesive are: [0004] SDS synthetic rubber 20~60% [0005] Hydrocarbon resins petroleum resin 30~60% [0006] Soft oil 10~50% [0007] It mainly has the following deficiencies: [0008] 1. ------ There are irregular bonding points between the two materials, the bonding area is large, and the hand feels hard [0009] 2. ------ Delamination and delamination between the bonding points of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12
Inventor 陆生平孙政刚孙家
Owner 江阴金凤特种纺织品有限公司
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