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Packing material, base material for adhesive tape, or separator

A packaging and adhesive tape technology, applied in the field of sanitary products, can solve the problem of high cost

Inactive Publication Date: 2003-12-31
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering the complexity of the production process and the qualified rate of the product, there is a problem of high cost

Method used

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  • Packing material, base material for adhesive tape, or separator
  • Packing material, base material for adhesive tape, or separator
  • Packing material, base material for adhesive tape, or separator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Prepare the release agent with 100 parts by weight of cationic polymerized UV-curable siloxane release agent and 2 parts by weight of the salt photoinitiator, and apply the release agent to one side of a low-density polyethylene film with a thickness of 30 μm, and the thickness reaches 0.7 μm. μm. After irradiating with ultraviolet light to form a cured film, the sheet is stretched to obtain the packaging material, base material for adhesive tape or separator of the present invention. Its stretching method (discontinuous processing condition of release agent layer) uses a stretching machine to carry out stretching treatment along the longitudinal direction (MD) and transverse direction (TD) of the sheet, and the stretching ratio is 1.2 times. (Example 2)

Embodiment 2

[0059] Except preparing stripping agent with 100 parts by weight of addition reaction heat-curing type siloxane release agent and 2 parts by weight of platinum series curing catalyst, as curing conditions form cured film with hot air drier, other are the same as embodiment 1, make The packaging material, base material for adhesive tape or release sheet of the present invention is obtained. (Example 3)

Embodiment 3

[0060] Except that the free-radical polymerized acryloyl-modified electron-ray-curable siloxane release agent is used as the release agent, and electron beam radiation is used as the curing condition to form a cured film, the others are the same as in Example 1 to obtain the packaging material of the present invention. , Adhesive tape substrate or release sheet. (comparative example 1)

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PUM

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Abstract

A packing material, a base material for adhesive tape, or a separator, comprising a base film that has a discontinuous coating of parting agent on at least one surface in such a manner that the surface is exposed in part. Alternatively, the base film has a coating of parting agent on at least one surface, and the coating is cracked to expose the surface of the base film. Still further, the present invention provides a structure of a sealing part of the above described packaging material etc. formed by heat seal processing of surfaces facing each other of releasing agent layers having cracks.

Description

technical field [0001] The present invention relates to a packaging material for hygienic products, such as sanitary napkins or disposable diapers, especially a packaging material for individual packaging of sanitary napkins. In addition, it is also used as a base material for adhesive tapes for medical use or surface protection. It is also suitable as a separator for adhesive items such as adhesive sheets, (double-sided) adhesive tapes, adhesives, etc., and disposable items such as paper diapers and sanitary napkins. Background technique [0002] In the past, it was proposed to protect disposable articles, such as separators used in the adhesive layer of sanitary napkins or disposable diapers, or packaging materials for sanitary products such as sanitary napkins, which have a release agent layer on a carrier composed of a flexible plastic film. release tape or packaging material. [0003] However, packaging materials with a traditional peeling function, such as sanitary n...

Claims

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Application Information

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IPC IPC(8): G11C11/412B32B7/06B32B27/00B65D75/26B65D75/52C09J7/22C09J7/40H01L21/8244H01L27/11
CPCC09J7/0253B65D75/52H01L27/11C09J7/026B32B7/06B65D75/26C09J7/0225C09J7/40C09J7/22C09J7/203H10B10/00B32B27/00
Inventor 荒川正章铃木喜八后藤和仁
Owner NITTO DENKO CORP
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