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Production process of PVC electrical adhesive tape

A production process and technology of electrical tape, applied in adhesives, film/sheet adhesives, pressure-sensitive films/sheets, etc., can solve problems such as low processing efficiency, high manufacturing cost, and easy aging of pressure-sensitive adhesives, and achieve The effect of reducing processing cost and improving processing efficiency

Inactive Publication Date: 2016-08-03
KUNSHAN JIUQING PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the melting temperature of the hot-melt pressure-sensitive adhesive is usually between 170 and 180 degrees, and the temperature resistance of PVC film is lower than this temperature range, the hot-melt pressure-sensitive adhesive cannot be directly coated on the PVC film, and must be transferred This production process has problems such as low processing efficiency, easy aging of pressure-sensitive adhesives, and high manufacturing costs.

Method used

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  • Production process of PVC electrical adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This preferred embodiment provides a production process of PVC electrical tape. like figure 1 As shown, the production process of PVC electrical tape specifically includes the following steps;

[0027] Step S1, preparing PVC base material; PVC is a material made of polyvinyl chloride resin as the main raw material, adding an appropriate amount of anti-aging agent, modifier, etc., and then undergoing processes such as mixing, calendering, and vacuum blistering. Quality, moisture-proof, flame-retardant, easy construction, etc. In addition, there are many specifications, colors, patterns, and strong practicability.

[0028] Step S2, sending the PVC base material in step S1 into a twin-screw extruder and extruding it through a T-shaped die;

[0029] Step S3, injecting the PVC base material extruded in step S2 into a casting machine for casting processing to form a PVC base film;

[0030] Step S4, feeding the pressure-sensitive adhesive into a twin-screw extruder and extr...

Embodiment 2

[0038] This preferred embodiment provides a production process for PVC electrical tape, the production process is basically the same as the production process described in the preferred embodiment 1, and specifically includes the following steps;

[0039] Step S1, preparing PVC base material;

[0040] Step S2, sending the PVC base material in step S1 into a twin-screw extruder and extruding it through a T-shaped die;

[0041] Step S3, injecting the PVC base material extruded in step S2 into a casting machine for casting processing to form a PVC base film;

[0042] Step S4, feeding the pressure-sensitive adhesive into a twin-screw extruder and extruding it through a T-shaped die;

[0043] Step S5, casting the pressure-sensitive adhesive extruded in step S4 on the PVC base film formed in step S3;

[0044] Step S6, the process of cooling and shaping, specifically, cooling by passing cooling water into the cooling roller, and the temperature of the cooling water is 13°;

[0045...

Embodiment 3

[0049] This preferred embodiment provides a production process for PVC electrical tape, which is basically the same as the production process described in preferred embodiment 1, except that:

[0050] Step S6, the process of cooling and shaping, specifically, cooling by passing cooling water into the cooling roller, and the temperature of the cooling water is 15°;

[0051] Step S7, the process of pulling and flattening is performed, that is, the cooled and shaped PVC film is stretched longitudinally and then transversely in two steps, and the stretching temperature is 35°;

[0052] Step S8 , the process of trimming and winding is carried out, and the winding speed is 55 m / min, and a sticky PVC film is finally obtained after trimming and winding.

[0053] The thickness of the sticky PVC film made by the above production process is 0.20mm.

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Abstract

The invention discloses a production process of PVC electrical tape, belongs to the technical field of tape processing technology, and is designed to solve the problems of low working efficiency and non-environmental protection in the existing electrical tape processing method. The production process of the PVC electrical tape provided by the invention is as follows: the PVC base material is extruded by a twin-screw extruder and then cast through a casting machine to form a PVC base film; the pressure-sensitive adhesive extruded by the twin-screw extruder The base film is then tape-cast to form a viscous PVC film. The production process of the PVC electrical adhesive tape of the present invention can improve processing efficiency, reduce production cost, save energy and protect the environment, and can make the pressure-sensitive adhesive difficult to age.

Description

technical field [0001] The invention relates to the technical field of tape processing technology, in particular to a production process of PVC electrical tape. Background technique [0002] During the manufacture, construction and use of electrical equipment, various terminals and connection joints of a large number of wires and cables need to be insulated and sealed with electrical tape for possible leakage. The scientific name of electrical tape is polyvinyl chloride electrical insulating tape, which is usually referred to as electrical insulating tape or insulating tape in the industry, also known as PVC electrical tape. Among them, the main component of PVC film is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, ductility, etc. [0003] Casting is a plastic film production process. First, the raw materials are plasticized and melted by an extruder, and then extruded through a T-shaped structure forming die, and cast in shee...

Claims

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Application Information

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IPC IPC(8): C09J7/02
CPCC09J7/22C09J7/38
Inventor 瞿平
Owner KUNSHAN JIUQING PLASTIC