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A base material and tape technology, which is applied in the field of foam tape base material preparation, can solve the problems affecting the use quality, appearance and aesthetics of the foam tape, and achieve the advantages of increased aesthetics, low production cost and strong practicability Effect
Inactive Publication Date: 2019-03-22
江苏朗臣新材料科技有限公司
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Problems solved by technology
In the process of processing, due to environmental factors, it is easy to adhere to dust on the base material due to static electricity, which seriously affects the quality and appearance of the foam tape. The pattern is not beautiful enough and needs to be improved urgently
Method used
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Embodiment 2
[0029] The operation steps of this embodiment are as follows:
[0030] 1. Put the raw materials of the foam tape substrate including 45 parts of linear low density polyethylene, 35 parts of polyurethane, 15 parts of hydrolysis-resistant components, 3 parts of coupling agent, 15 parts of foaming agent and 3 parts of antistatic agent into mixing Mix in the machine, and granulate at a certain temperature to make the base material masterbatch;
[0031] 2. Add the antistatic agent and use water to prepare a solution with a mass fraction of 2%;
[0032] 3. Add the solution in step 2 to the spray equipment, spray the environment of the extrusion molding process, and then send the base material masterbatch in step 1 into the extrusion molding equipment, and extrude at a uniform speed to form a sheet ;
[0033] 4. Soak the sheet in step 3 in the solution in step 2. The upper surface of the solution is 1mm above the upper surface of the sheet, soak for 3 hours, then take it out and us...
Embodiment 3
[0037] The operation steps of this embodiment are as follows:
[0038] 1. Put 30 parts of linear low-density polyethylene, 30 parts of polyurethane, 30 parts of hydrolysis-resistant components, 1 part of coupling agent, 15 parts of foaming agent, and 1 part of antistatic agent into the kneading process Mix in the machine, and granulate at a certain temperature to make the base material masterbatch;
[0039] 2. Add the antistatic agent and use water to prepare a solution with a mass fraction of 2%;
[0040] 3. Add the solution in step 2 to the spray equipment, spray the environment of the extrusion molding process, and then send the base material masterbatch in step 1 into the extrusion molding equipment, and extrude at a uniform speed to form a sheet ;
[0041] 4. Soak the sheet in step 3 in the solution in step 2. The upper surface of the solution is 1mm above the upper surface of the sheet, soak for 2 hours, then take it out and use air-drying treatment, the wind speed is ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a preparation method of a base material for a foam tape, and relates to the technical fields of the production and the processing of foam tapes. The preparation method comprises the following steps of putting raw materials of the base material for the foam tape into a mixing mill, mixing, and carrying out granulation processing at a certain temperature, so that a master batch of the base material is made; adding an antistatic agent into water to obtain a solution and adjusting a mass fraction to be 0.5% to 2% by utilizing water; adding the solution into a spraying device, carrying out spraying treatment on an environment of an extrusion forming procedure, then feeding the master batch of the base material into an extrusion forming device, and forming a sheet material through uniform-speed extrusion forming; soaking the sheet material into the solution, then taking out and oven-drying; pressing one surface of the oven-dried sheet material by utilizing a pressingdevice, so that the sheet material with a pattern on the surface is formed; and coating high-viscosity acrylic glue on the other surface of the sheet material with the pattern on the surface, and thencollecting and coiling the sheet material together with release paper. The preparation method can reduce the generation of static in the production process of a foam base material; and the adhesion of dust due to the existence of the static is effectively avoided.
Description
technical field [0001] The invention relates to the technical field of foam tape production and processing, in particular to a preparation method of a foam tape base material. Background technique [0002] Foam tape is made of EVA or PE foam as the base material, coated with solvent-based (or hot-melt) pressure-sensitive adhesive on one or both sides and then coated with release paper. It has the functions of sealing and shock absorption. It has excellent sealing performance, compression deformation resistance, flame retardancy, wettability, etc. Products are widely used in electronic and electrical products, mechanical parts, various small household appliances, mobile phone accessories, industrial instruments, computers and peripheral equipment, auto parts, audio-visual equipment, toys, cosmetics, etc. [0003] When processing foam tape, it is first necessary to process the base material of the foam tape. At present, some base materials are mixed and granulated, and then ...
Claims
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Application Information
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