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Thermosensitive adhesive component, and thermosensitive adhesive label sheet

A heat-sensitive adhesive, label sheet technology, applied in the direction of adhesive types, polymer adhesive additives, unsaturated alcohol copolymer adhesives, etc., can solve problems such as insufficient adhesion

Inactive Publication Date: 2011-10-19
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But again, this method is also insufficient on the adhesion of rough surface material bodies such as corrugated paper

Method used

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  • Thermosensitive adhesive component, and thermosensitive adhesive label sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] (1) Preparation of liquid dispersion of dye

[0070] Disperse the following components by a sand mill to obtain particles with an average particle size of 0.5 μm:

[0071] 20 parts of 3-dibutylamino-6-methyl-N-7-anilinofluoran

[0072] 20 parts of 10% aqueous solution of polyvinyl alcohol (PVA)

[0073] 60 parts of water

[0074] (2) Preparation of liquid dispersion of developer

[0075] Disperse the following components by a sand mill to obtain particles with an average particle size of 0.5 μm:

[0076] 20 parts of 4-isopropoxy-4′-hydroxydiphenyl sulfone

[0077] Di-(p-methylbenzyl) oxalate 10 parts

[0078] Calcium carbonate 10 parts

[0079] 30 parts of 10% aqueous solution of polyvinyl alcohol (PVA)

[0080] 30 parts of water

[0081] (3) Preparation of liquid applied to thermosensitive recording layer

[0082] The following components are mixed to prepare the liquid applied to the thermosensitive recording layer:

[0083] Liquid dispersion of dye 20 parts...

Embodiment 2

[0116] Another thermosensitive recording composition of the present invention was obtained in the same manner as described in Example 1, except that the dispersant of the solid plasticizer in (6) of Example 1 was changed to polyvinyl alcohol (GL-05, manufactured by Nippon Synthetic Chemical Industry Co., Ltd., weight average molecular weight: 11,000, saponification value: 88%).

Embodiment 3

[0118] Another thermosensitive recording composition of the present invention was obtained in the same manner as described in Example 1, except that the dispersant of the solid plasticizer in (6) of Example 1 was changed to polyvinyl alcohol (Weight average molecular weight: 39,000, saponification value: 88%).

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Abstract

A thermosensitive adhesive composition containing a thermoplastic resin, an adhesiveness imparting agent and a solid plasticizing agent containing a dispersing agent, wherein the dispersing agent is a polyvinyl alcohol based resin having a weight average molecular weight of from 11,000 to 39,000.

Description

technical field [0001] The present invention relates to a heat-sensitive adhesive component and a heat-sensitive self-adhesive label sheet formed therefrom. Background technique [0002] Recently, self-adhesive label sheets have been increasingly used as price display labels, product display (barcode) labels, quality display labels, metric display labels, advertising labels (adhesives), and the like. The recording systems used for these labels are of various kinds, such as inkjet recording systems, heat-sensitive recording systems, and pressure-sensitive recording systems. Therefore, a conventionally used adhesive sheet has a structure in which an adhesive layer and a peeling sheet are laminated on the other side of the information recording side. These sheets are widely used because when attaching the sheet, such a sheet can be easily attached just by peeling the release sheet from the label and pressing the label. However, once the release sheet of the adhesive sheet hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J129/04G09F3/10B65H18/28C09J7/35
CPCC09J11/08C09J7/35
Inventor 北野亨久乡智之稻叶宪彦
Owner RICOH KK