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Release heat-seal packaging paper and manufacturing method thereof

A production method and technology of wrapping paper, which are applied in the directions of wrapping paper, wrapping paper, packaging, etc., can solve the difficulty in realizing industrial-scale coating production process, the inability to achieve heat-sealing adhesion and sealing of wrapping paper, and the inability of anti-adhesive layer to connect heat. Sealing, adhesion, sealing, etc.

Active Publication Date: 2020-11-17
上海紫华薄膜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wrapping paper with such a structure, its anti-adhesive layer is partially counter-coated, and the anti-adhesive layer on the wrapping paper cannot be butt-jointed with heat-sealed adhesive seal, so that the wrapping paper cannot be completely heat-sealed, adhesively sealed, and the seal is not tight. , which is unfavorable to the moisture-proof and dust-proof protection of the contents; at the same time, the anti-adhesive layer is partially counter-coated, and its industrial-scale coating production process is also difficult to realize

Method used

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  • Release heat-seal packaging paper and manufacturing method thereof
  • Release heat-seal packaging paper and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] see figure 1 , a schematic cross-sectional structure of the release heat-seal wrapping paper of Example 1.

[0050] The main body of the release heat-seal wrapping paper is a paper substrate 10 . In this embodiment, the grammage of the paper substrate 10 is about 30g / m 2 .

[0051] The entire outer surface of the paper substrate 10 is covered with a layer of heat-sealing layer 11 , and the entire inner surface (the inner surface facing the content) is covered with a layer of release heat-sealing layer 12 .

[0052] The release heat-sealing layer 12 is formed by coating the release heat-pressed plasticized water-based paint. Among them, the formula of the water-based coating that is plasticized by release type heat press contains 93% of thermoplastic water-based acrylic emulsion and 6% of water-based polyethylene wax emulsion, and the solid content of thermoplastic water-based acrylic emulsion is about 40-45%. Water-based polyethylene wax The emulsion is a product of...

Embodiment 2

[0064] The release heat-seal wrapping paper of embodiment 2 differs from embodiment 1 in that: 1) the grammage of the paper substrate 10 of embodiment 2 is 60g / m 2 2) The formula of the water-based paint of the release heat-press plasticization adopted by the release heat-sealing layer 12 of embodiment 2 is different, specifically, the formula of the water-base paint of release heat-press plasticization comprises 86% thermoplastic water-based paint Acrylic emulsion and 13% water-based polyethylene wax emulsion, and the solid content of the thermoplastic water-based acrylic emulsion is about 42-45%; the solid content of the water-based polyethylene wax emulsion is about 42%. In this embodiment, the thermoplastic water-based acrylic emulsion is a product of model BT-62 purchased from DSM; the water-based polyethylene wax emulsion is a product of model E-842N purchased from Onkel Company.

[0065] The preparation method of the release heat-seal wrapping paper of embodiment 2 is a...

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Abstract

The invention relates to release heat-seal packaging paper and a manufacturing method thereof, and application of the release heat-seal packaging paper in packaging paper of hygienic products. According to the invention, it is accidentally found that after thermoplastic water-based acrylic emulsion and E-842N type water-based polyethylene wax emulsion purchased from the Weikeer company are combined according to a specific ratio, a release hot-pressing plasticized water-based coating material can be obtained, the whole inner surface of packaging paper is coated with the coating material to forma release heat-sealing layer, and the outer surface of the packaging paper is coated with a heat-sealing layer, so that on the basis of ensuring that the inner surface of the packaging paper achievesa release anti-sticking function on contents of sanitary articles such as sanitary towels, the inner surface and the outer surface can achieve a heat sealing function, the packaged contents can be completely sealed, moisture and dust are prevented, and the effect of protecting the contents is truly achieved; the two surfaces of a paper base material are coated on the whole surface, so that the situation of local coating is avoided, the coating process is simple, and industrial large-scale production is easy to realize; and the inner surface and the outer surface of the packaging paper can beheat-sealed, adhered and butted, the packaging form is not limited, and diversification can be realized.

Description

Technical field [0001] The invention relates to a release heat-sealing packaging paper and belongs to the technical field of packaging paper. Background technique [0002] At present, the packaging of daily hygiene products such as sanitary napkins, diapers or breast pads usually uses PE film as the packaging carrier. Common packaging forms are: 1) Printing a pattern on the front of the PE film, coating the back with silicone coating, and then Directly package sanitary napkins, diapers, breast pads and other sanitary products; 2) Print the pattern on the front of the PE film, and then paste a layer of release paper on the self-adhesive area of ​​the sanitary products to be packaged (its release surface Coated with a layer of silicone anti-adhesive layer) for isolation and protection. It can be seen that these common packaging forms all use PE films as packaging carriers. However, PE films are difficult to degrade after being discarded and will pollute the environment. [0...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21H19/84D21H19/14D21H19/20D21H21/12B65D65/42
CPCD21H27/10D21H19/84D21H19/14D21H19/20D21H21/12B65D65/42
Inventor 曹继刚王冬梅许雍
Owner 上海紫华薄膜科技有限公司
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