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Adhesive tape support and adhesive tape

A technology of support body and adhesive tape, applied in the field of adhesive tape, to achieve the effects of good workability, excellent strength, and excellent unwinding workability

Active Publication Date: 2016-03-09
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially problematic when unwinding the adhesive tape

Method used

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  • Adhesive tape support and adhesive tape
  • Adhesive tape support and adhesive tape
  • Adhesive tape support and adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] (Support for Adhesive Tape)

[0135] 50 parts by weight of low-density polyethylene (trade name "Nobatec LF342M", manufactured by Nippon Polyethylene Co., Ltd.) (LDPE-1), high-density polyethylene (trade name "HIZEX 2200J", manufactured by Prime Polymer Co., Ltd.) (HDPE- 1) 50 parts by weight and 1 part by weight of a white pigment (trade name "HCM1030 HOWITTO", manufactured by Dainichi Seika Co., Ltd.) were mixed (dry blended) to obtain a support composition (substrate composition).

[0136]Extrude the above-mentioned support body composition, and form a film by extrusion molding through a T-shaped die at a temperature of 230° C. to obtain a film. A groove-shaped concave portion extending in the width direction. In addition, the formed recess has a rib.

[0137] In addition, the above-mentioned embossing roller has implemented concavo-convex engraving so that the maximum width of the concave portion, the depth of the concave portion, the number of the concave portion...

Embodiment 2～8

[0146] Materials were mixed (dry mixed) as shown in Table 1 to obtain a support composition (substrate composition), and embossed engraving was used to enable the formation of the maximum width of the concave portion shown in Table 1 by transfer, the depth of the concave portion, Except for the number of recesses, the pitch of recesses, the radius of curvature of the bottom surface of the recesses, and the embossing roll for the curved portion of the bottom surface of the recesses, a support for an adhesive tape having recesses was obtained in the same manner as in Example 1.

[0147] Then, it carried out similarly to Example 1, and obtained the adhesive tape.

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Abstract

The utility model provides a supporting body for the adhesive tape, wherein the adhesive tape can be cut off in an excellent hand tearing mode and is good in operation when cut off, excellent in strength in the length direction and unwinding operation of the adhesive tape, and is not cut off when the adhesive tape is unwound (used). The supporting body for the adhesive tape comprises polyolefin resin thin films and is characterized in that at least one face of the supporting body is provided with sulciform concave portions along the width direction, the bottom surface of each concave portion is a curved surface with a curvature portion R of 0.1-2, the largest width of each concave portion is 50-500 [mu] m, the number of the concave portions is 200-2000 per meters. R=r / D, wherein the R represents the concave portions, the r represents curvature radius of the bottom surface of each concave portion, and the D represents the depth of each concave portion.

Description

technical field [0001] This invention relates to the support body for adhesive tapes. More specifically, the present invention relates to a support for an adhesive tape having excellent hand-tearability and excellent strength in the longitudinal direction, and an adhesive tape using the support for an adhesive tape. Background technique [0002] Conventionally, when transporting, processing, and maintaining metal sheets, painted metal sheets, so-called "aluminum sash", resin sheets, decorative steel sheets, vinyl chloride-based resin-laminated steel sheets, glass sheets, etc. , use a re-peelable adhesive tape or sheet ("adhesive tape or sheet" is collectively referred to as "adhesive tape") as a surface protection tape or sheet for applications such as sticking for surface protection. For the above-mentioned re-peelable adhesive tape, a cutting method using a cutting tool such as scissors or a knife is often used in the sticking operation. However, when the adhesive tape i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C08L23/00
Inventor 矢田贝隆浩川西道朗夏目雅好长津秀树中川善夫请井博一
Owner NITTO DENKO CORP
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