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Flat-cable-coating material and flat cable

A coating material and cable technology, applied in the direction of flat/ribbon cable, cable, thin material processing, etc., can solve the problem of reducing flame retardancy, reducing conductor adhesion, and inconsistency between conductor adhesion and flame retardancy and other problems, to achieve the effect of small load and excellent blocking resistance

Inactive Publication Date: 2006-07-19
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At that time, when the amount of flame retardant in the adhesive layer was increased to improve flame retardancy, the adhesion to the conductor was reduced
On the other hand, when the amount of flame retardant in the adhesive layer is reduced in order to improve the conductor adhesion, the flame retardancy decreases
That is, there is a disadvantage that conductor adhesion and flame retardancy are not compatible

Method used

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  • Flat-cable-coating material and flat cable
  • Flat-cable-coating material and flat cable
  • Flat-cable-coating material and flat cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] The following primer composition ink was applied to a PET film GEC-23 (manufactured by Teijin Dupon Film Co., Ltd., trade name) with a thickness of 23 μm by a gravure roll coating method so that the film thickness was 1 μm (dry state), and dried to form bottom layer.

[0141] ・As a primer composition ink, a polyester resin with a glass transition point of 40° C. and a polyol-based urethane resin (solid content mass ratio 1:1, hydroxyl value = 10 mgKOH / g) were dissolved in a mixture of methyl ethyl ketone / toluene = 1 / In a mixed solvent composed of 1, prepare liquid A, dissolve toluene diisocyanate and hexamethylene diisocyanate in a mixed solvent composed of methyl ethyl ketone / toluene = 1 / 1, prepare liquid B, and then put liquid A and liquid B in Mix immediately before coating on film substrates.

[0142] Next, use the following thermal adhesive layer composition ink to apply on the primer layer at a speed of 5 m / min with a comma coater so that the film thickness is 40 ...

Embodiment 2-4

[0149] The coating and drying conditions were adjusted in various ways. The ratio of each component of 3 μm on the substrate film side and the conductor side in the thermal adhesive layer is shown in Table 1. A strip-shaped Cable covering material.

[0150] (Example 5)

[0151] Using the following two types of ink, it was coated with a comma coater at a speed of 25 m / min, and the entire drying area was dried with hot air. Similarly, the first layer and the second layer were coated and dried twice in sequence, so that the cumulative film thickness reached 40 μm (dry state), and a thermal adhesive layer was formed to obtain a ribbon cable covering material.

[0152] For the ink of the first layer, 20 parts by mass of polyester resin with a glass transition point of -30°C, 4 parts by mass of polyester resin with a glass transition point of 5°C, and 1.2 parts by mass of polyester resin with a glass transition point of 80°C were used as thermoplastic resin components. parts, as t...

Embodiment 6

[0155] Using the following three types of inks, they were coated with a comma coater at a speed of 30 m / min, and the entire drying area was dried with hot air. Similarly, the first layer to the third layer were repeatedly coated and dried three times in sequence, so that the cumulative film thickness reached 40 μm (dry state), and a thermal adhesive layer was formed to obtain a ribbon cable covering material.

[0156] For the ink of the first layer, 20 parts by mass of polyester resin with a glass transition point of -30°C, 4 parts by mass of polyester resin with a glass transition point of 5°C, and 1.2 parts by mass of polyester resin with a glass transition point of 80°C were used as thermoplastic resin components. parts, as the filler component, use 43.6 parts by mass of aluminum hydroxide, 26.7 parts by mass of antimony trioxide, 4 parts by mass of melamine sulfate, and 0.5 parts by mass of silicon dioxide, and then add 1.7 parts by mass of polyester plasticizer, 0.5 parts...

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Abstract

A flat cable covering material which has a base material film and, provided on one surface thereof, a thermal adhesive layer (P + V) containing at least a filler (P) and a thermoplastic resin (V), wherein the mass proportion (P) / (P + V) is distributed in a graduated manner in the direction of the thickness of the thermal adhesive layer, preferably, is gradiatedly distributed in such a manner that the mass proportion decreases from the base material film side to the side of the surface of the thermal adhesive layer in the range of (P) / (P + V) = 90 to 50 mass %, or wherein the filler (P) component comprises a hydrated metal compound (P1) and the mass proportion (P1) / (P) is gradiatedly distributed in such a manner that the mass proportion (P1) / (P) decreases from the base material film side to the side of the surface of the thermal adhesive layer in the range of (P1) / (P) = 80 to 0 mass %.

Description

technical field [0001] The present invention relates to a flat cable covering material, and more specifically, to a flat cable covering material for a flat cable used in electrical equipment, electronic equipment, etc., having both flame retardancy and conductor adhesiveness, And a flat cable using the flat cable covering material. Background technique [0002] In electronic equipment such as OA equipment and game machines, ribbon cables are used for electrical connection between computers and electronic components and various wirings. The ribbon cable is folded in a narrow housing of an electronic device, slides along with the movement of the electronic component, and is used in a high-temperature environment accompanied by heat generation of the electronic component. Therefore, the flat cable covering material for covering the flat cable requires heat resistance to high temperature, flame retardancy, and insulation, as well as flexibility and flexibility to slope flow. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/08H01B7/295C09J7/02C09J11/04C09J11/06C09J201/00H01B3/18
CPCH01B3/18Y10T428/24595H01B3/42H01B7/08H01B7/17H01B7/292H01B7/295
Inventor 今村秀机堀弥一郎山本浩
Owner DAI NIPPON PRINTING CO LTD
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