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A double-layer composite elastic perforated film and its production method

A double-layer composite and production method technology, applied in the field of absorbent textiles, can solve the problems of not being able to meet the needs of user functions and comfort, poor dryness, and large amount of reverse osmosis, etc., so as to achieve delicate and dry touch. The effect of good performance and less reverse osmosis

Inactive Publication Date: 2016-11-30
林志平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The surface material of existing sanitary napkins is mainly air-through non-woven fabric and PE perforated film. The air-through non-woven fabric is soft and comfortable, but its reverse osmosis is large and its dryness is not good; while PE perforated film has good dryness. , The amount of reverse osmosis is small, but its gloss is high, the plastic feeling is high and the softness is poor
Neither of the above two materials can well meet the needs of users for function and comfort.

Method used

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  • A double-layer composite elastic perforated film and its production method
  • A double-layer composite elastic perforated film and its production method
  • A double-layer composite elastic perforated film and its production method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 and figure 2 As shown, a double-layer composite elastic perforated film 1 includes a thermoplastic elastomer TPE surface layer 11 and a PE thermoplastic material supporting bottom layer 12 fixed up and down, and the bottom layer 12 has a supporting function to prevent the double-layer composite elastic perforation membrane collapse. The perforated film is provided with a perforated area 10 accounting for 30-65% of its total area, and the hole pattern is a circular, oval, rhombus, or regular polygonal pattern arranged in a regular matrix. The production method of this double-layer composite elastic perforated film is as follows:

[0029] (1) First put 5.2 parts by weight of styrene block copolymer SEBS4033 and 21 parts by weight of styrene block copolymer SEBS4044 (SEBS4033, SEBS4044, SIS or SEPS, purchased from Japan Kuraray Co.) After stirring for 5 minutes, add 26.2 parts by weight of white mineral oil (Karamay 4006) and stir for 3 to 5 minutes, s...

Embodiment 2

[0041] Such as figure 1 As shown, a double-layer composite elastic perforated film 1 includes a thermoplastic elastomer TPE surface layer 11 and a PE thermoplastic material supporting bottom layer 12 fixed up and down, and the bottom layer 12 has a supporting function to prevent the double-layer composite elastic perforation membrane collapse. The perforated film is provided with a perforated area 10 accounting for 30-65% of its total area, and the hole pattern is a circular, oval, rhombus, or regular polygonal pattern arranged in a regular matrix. The production method of this double-layer composite elastic perforated film is as follows:

[0042](1) First put 5.5 parts by weight of styrene block copolymer SEBS4033 and 22 parts by weight of styrene block copolymer SEBS4044 (SEBS4033, SEBS4044, SIS or SEPS, purchased from Japan Kuraray Co.) After stirring for 5 minutes, add 27.5 parts by weight of white mineral oil (Karamay 4006) and stir for 3 to 5 minutes, so that the styre...

Embodiment 3

[0054] Such as figure 1 As shown, a double-layer composite elastic perforated film 1 includes a thermoplastic elastomer TPE surface layer 11 and a PE thermoplastic material supporting bottom layer 12 fixed up and down, and the bottom layer 12 has a supporting function to prevent the double-layer composite elastic perforation membrane collapse. The perforated film is provided with a perforated area 10 accounting for 30-65% of its total area, and the hole pattern is a circular, oval, rhombus, or regular polygonal pattern arranged in a regular matrix. The production method of this double-layer composite elastic perforated film is as follows:

[0055] (1) First put 5.2 parts by weight of styrene block copolymer SEBS4033 and 21 parts by weight of styrene block copolymer SEBS4044 (SEBS4033, SEBS4044, SIS or SEPS, purchased from Japan Kuraray Co.) After stirring for 5 minutes, add 26.2 parts by weight of white mineral oil (Karamay 4006) and stir for 3 to 5 minutes, so that the styr...

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Abstract

The invention discloses a double-layer composite elastic perforated film and a production method thereof, which comprises a thermoplastic elastomer TPE surface layer and a PE thermoplastic material bottom layer fixed up and down, and a perforated area with a total area of ​​30-65%. The hole type is a circular, elliptical, rhombus, or regular polygonal hole pattern arranged in a regular matrix. The double-layer composite elastic perforated film of the present invention adopts thermoplastic elastomer TPE as the surface layer, and PE thermoplastic material as the bottom layer. On the basis of maintaining the advantages of good dryness and less reverse osmosis of the PE film, it greatly improves the comfort. Its surface has low gloss, delicate touch, soft and comfortable, which well meets the needs of customers for comfort and function.

Description

technical field [0001] The invention belongs to the field of absorbent textiles, and in particular relates to a double-layer composite elastic perforated film and a production method thereof. Background technique [0002] The surface material of existing sanitary napkins is mainly air-through non-woven fabric and PE perforated film. The air-through non-woven fabric is soft and comfortable, but its reverse osmosis is large and its dryness is not good; while PE perforated film has good dryness. , The amount of reverse osmosis is small, but its gloss is high, the plastic feeling is high and the softness is poor. Neither of the above two materials can well satisfy users' needs for functionality and comfort. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art, and provide a double-layer composite elastic perforated film and a production method thereof. [0004] Technical scheme of the present invention is as foll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/30A61L15/24
Inventor 林志平
Owner 林志平