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Heat sealable printing sheet

A recording sheet, heat-sealing technology, applied in the directions of copying/marking methods, labels, applications, etc., can solve the problems of peeling off the ink-receiving layer and the overall hardening of the recording sheet, and achieve the effect of good bending characteristics and excellent adhesion.

Active Publication Date: 2016-10-12
COPYER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of a packaging film provided with an ink-receiving layer for absorbing ink, since the ink-receiving layer has a thickness, the entire recording sheet becomes hard, and the ink-receiving layer may peel off from the substrate due to bending.

Method used

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  • Heat sealable printing sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0335] [Preparation of alumina hydrate dispersion]

[0336] 20 parts of alumina hydrate (trade name "Disperal HP14", manufactured by Sasol) having a boehmite structure (pseudo-boehmite structure) was added to pure water. Further, 0.4 part of acetic acid was added to perform degumming treatment to obtain an alumina hydrate dispersion liquid. The average particle diameter of the alumina hydrate fine particles in the obtained alumina hydrate dispersion liquid was 140 nm. 0.3 part of boric acid was added to the obtained alumina hydrate dispersion to obtain a 20% boric acid-added alumina hydrate dispersion.

[0337] [Preparation of polyvinyl alcohol aqueous solution]

[0338] Polyvinyl alcohol (trade name "PVA235", manufactured by Clara) was dissolved in ion-exchanged water to prepare an aqueous solution of polyvinyl alcohol having a solid content of 8%. In addition, polyvinyl alcohol had a weight-average degree of polymerization of 3,500, a degree of saponification of 87 to 89 ...

Embodiment 2

[0345] Except changing the acrylic resin to Tg-34.0 ℃, the trade name "Binilburan 2642" (manufactured by Nissin Chemical Industry Co., Ltd.) with a solid content concentration of 40.0%, and changing the addition amount to 0.55 parts, the same method as in Example 1 was obtained. Heat-sealed recording sheets and packages.

Embodiment 3

[0347] Except changing the acrylic resin into Tg0 ℃, solid content concentration 30.0% (trade name "Binylburan 2651", manufactured by Nissin Chemical Industry Co., Ltd.) Enclosed documentaries and packaging.

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Abstract

A heat sealable printing sheet (1) includes a sheet-shaped base member (50), and an ink receiving layer (53) disposed on a first surface of the base member (50) and having a heat sealability. The heat sealable printing sheet further includes a heat sealable layer (52) disposed on a second surface of the base member (50) and made of a heat sealable resin material. The ink receiving layer (53) contains inorganic fine particles, a water soluble resin, and a water dispersible resin. The water dispersible resin has a glass transition temperature (Tg) satisfying from -35 DEG C to 35 DEG C.

Description

technical field [0001] The present invention relates to a heat-sealable recording sheet comprising a sheet-shaped base material, a heat-sealable ink receiving layer, and a heat-sealable layer. Background technique [0002] Conventionally, packages for beverages, confectionery, food, cigarettes, magnetic tape cassettes, magnetic disks, etc. are widely sold, in which packaged objects containing contents are packaged with a transparent packaging film. For the packaged items, we implement the records that make you feel the seasons such as nature and scenery in the four seasons, and the records that have the value as a special gift such as crowns for weddings and funerals, etc. to make it highly interesting. Various records of character and value. When manufacturing packages with high added value, it is necessary to change the contents of records for each package. [0003] For example, efforts have been made to record the part where the recorded content has not been changed on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/50B41M5/52
CPCB41M5/506B41M5/5218B41M5/504B41M5/52B41M5/5254B32B27/36B32B2323/10B32B2519/00
Inventor 筒井乔纮澄川裕辅平林弘光
Owner COPYER
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