Pressure-sensitive Adhesive Force Expressing Unit, Pressure-sensitive Adhesive Label Issuing Device, And Printer

Abstract

A pressure-sensitive adhesive force expressing unit including: a conveyance unit for conveying a pressure-sensitive adhesive label in a predetermined direction; a thermal head including a plurality of heat generating elements arranged along a direction substantially orthogonal to the predetermined direction, the thermal head being configured to heat the pressure-sensitive adhesive label from a pressure-sensitive adhesive layer side to form a bore in a non-pressure-sensitive-adhesive function layer and expose the pressure-sensitive adhesive layer; and a control unit for energizing the plurality of heat generating elements individually to control the plurality of heat generating elements to generate heat, the control unit being configured to control the plurality of heat generating elements to generate heat by providing an intermittent energization period of intermittently energizing the plurality of heat generating elements in a heat generating period of one cycle of forming bores for one row in the non-pressure-sensitive-adhesive function layer.

Description

technical field [0001] The present invention relates to an adhesive force developing unit, an adhesive label issuing device, a printer, an adhesive force developing method, and an adhesive force developing program. Background technique [0002] Conventionally, as an adhesive label used in, for example, food POS labels, logistics / transportation labels, medical labels, packaging labels, display labels for bottles / cans, etc., a recording surface (printing surface) formed on the surface of a substrate is known. Adhesive label consisting of an adhesive layer formed on the back of the substrate and a separator covering the adhesive layer. [0003] When using such an adhesive label, after printing predetermined information such as a barcode or a price on the recording surface, it is necessary to peel off the release paper from the adhesive layer. However, since it is actually difficult to recover and recycle the peeled release paper, there is a problem that the release paper becom...

AI Technical Summary

Problems solved by technology

[0006] In the technology of forming a hole in the resin layer by using a heat source such as a thermal head to expose the adhesive layer and develop the adhesive force, there is a problem that a temperature difference occurs between the central part of the heating element and its outer peripheral part, and the formed hole is unstable.

That is, when the heat generation is insufficient, the temperature of the heating element cannot sufficiently melt the resin layer in the outer peripheral part, and there are cases where the desired size / shape of the perforation cannot be formed.

In addition, on the contrary, when the temperature of the heating element is sufficiently raised in the outer peripheral portion to apply more energy to the heating element, the resin layer may be excessively melted and the perforation may be too large, or the molten resin layer may be coagulated and bonded. Undesired unevenness on the surface

[0007] In this regard, the above-mentioned prior art (the latter) is aimed at keeping the temperature of the heating element constant and directly applying it to a method of forming a perforation on a resin layer by using a heat source such as a thermal head to expose the adhesive layer and develop adhesive force. installation is very difficult

As a result, in the prior art, it is difficult to stably form a perforation of a satisfactory shape

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