Gravure roll for application of pressure-sensitive adhesive and process for producing pressure-sensitive adhesive tape

A technology for adhesives and manufacturing methods, applied to adhesives, devices for coating liquid on surfaces, film/sheet adhesives, etc., can solve the problems of slowing down, poor productivity, etc., and achieve uniform adhesive layer and transfer rate Improvement, effect of improvement per unit area

Active Publication Date: 2011-09-14
NITOMS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to form a stable adhesive layer 4, the speed must be reduced to a certain extent, resulting in poor productivity.

Method used

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  • Gravure roll for application of pressure-sensitive adhesive and process for producing pressure-sensitive adhesive tape
  • Gravure roll for application of pressure-sensitive adhesive and process for producing pressure-sensitive adhesive tape
  • Gravure roll for application of pressure-sensitive adhesive and process for producing pressure-sensitive adhesive tape

Examples

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Embodiment Construction

[0043] The best way to practice the invention

[0044] Such as figure 1 and figure 2 As shown, the adhesive coating grooved roll 10 a (hereinafter simply referred to as a grooved roll) of the first embodiment is a metal roll, and the pool 20 filled with the adhesive 30 is formed on the surface thereof. The material of the grooved roll 10a, the roll diameter, etc. can be arbitrary according to a specification.

[0045] In this example, the tank 20 has: a first tank 21 for forming a full-surface adhesive layer 41 along the substrate 40; and a second tank 22 for further forming a dispensing adhesive layer on the full-surface adhesive layer 41 42. The number or shape of pools 20 can be designed arbitrarily according to specifications.

[0046] The first pool 21 is formed by a concave surface further lowered along the surface of the grooved roll 10a, and is continuously formed in a belt shape along the outer peripheral surface of the grooved roll 10a for full-surface coating....

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PUM

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Abstract

A technique for producing a pressure-sensitive adhesive tape is provided which attains satisfactory coating pattern reproducibility when a pressure-sensitive adhesive is applied with a gravure roll. Partitions (23) which separate cells (21, 22) formed in the surface of a gravure roll (10a or 10b) are disposed at the boundaries between the cells (21, 22), and fine irregularities (24) are further formed in the surface of the partitions (23) in order to improve coating pattern reproducibility.

Description

technical field [0001] The present invention relates to a technique for producing an adhesive tape using a gravure roll, and more specifically, to a technique for improving the adhesive application efficiency of a gravure roll. Background technique [0002] The tape for cleaning is rolled into a roll with the dirt sticking surface facing the outside. For example, use a special device to rotate the dirt sticking surface along the floor and other surfaces to be cleaned, so that the dirt sticking surface can be captured and cleaned Dirt on the surface. [0003] For example, as shown in Patent Document 1, in conventional adhesive tapes of this type, molten adhesive is extruded from a nozzle to a continuously moving substrate, and the adhesive is coated on the substrate. In this way, the adhesive extruded from the nozzle is directly coated on the substrate, so a stable adhesive layer can be formed. [0004] However, during nozzle coating, although the adhesive layer is stable, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/08B05D1/28C09J7/02
CPCB05C1/0808B41N1/20B05D1/283C09J7/22C09J7/30C09J7/38C09J2301/16C09J2301/204C09J2301/206C09J2301/302C09J2301/40
Inventor 小川隆久重光宽
Owner NITOMS INC
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