Preparation method of protective tape

Abstract

The invention relates to a preparation method of a protective tape, which is characterized by comprising the following steps of: 1, with EPE (Expandable Polyethylene) pearl cotton as a substrate, carrying out corona on the surface of the substrate so that the surface tension of the substrate is more than or equal to 46 dynes; 2, coating a layer of acrylate adhesive on the surface of the substrateto be used as an adhesive layer, and adding an epoxy stiffening agent and an isocyanate stiffening agent to the acrylate adhesive; and 3, drying and ripening to obtain the protective tape. Compared with prior art, the invention has the advantages that: the EPE pearl cotton is used as a substrate and combined with the adhesive modified by the stiffening agents so that a good adhesiveness is ensured on the basis of quakeproof property, rebound and anticollision. Meanwhile, the protective tape has light weight and heat insulation and moisture-proof functions, can be recycled and has little pollution to the environment.

Description

technical field [0001] The invention relates to a preparation method of an adhesive tape, in particular to a preparation method of a protective adhesive tape. The protective tape can be used for industrial product packaging. Background technique [0002] EPE pearl cotton is polyethylene foamed cotton, which has a non-crosslinked closed-cell structure. It is a new type of environmentally friendly plastic product material. Talc powder and butane are the main additives, and the plastic material of pearl cotton-like foam sheet formed by heating, melting, extrusion, catalysis, and physical foaming has no chemical action in the production process. The environmental protection characteristics of EPE have not changed, so the pearl cotton material can be recycled and reused, and will not cause any waste and pollution to the earth's resources and the environment. The environmental protection characteristics of EPE have been recognized in the world. And because EPE pearl cotton is co...

AI Technical Summary

Problems solved by technology

[0003] Due to the extremely high requirements for packaging protection during transportation such as precision parts, optical plastic plates, optical glass plates, and ink layer surfaces, most of the protective tapes during transportation in the prior art are made of PET (polyethylene terephthalate) As the base material, it cannot play the role of shockproof and anti-collision. For such public documents, you can refer to the Chinese utility model patent "PET Film Hot Melt Pressure Sensitive Tape" (authorized announcement number: CN201793519U) with the patent number ZL201020520938.3. The patent includes the substrate made of PET film and the pressure-sensitive adhesive layer on the substrate; you can also refer to the Chinese utility model patent "A Die-cut Industrial Electronic Tape" with the patent number ZL201020186144.8 (authorized announcement number: CN201777999U)

The traditional ones are either directly packaged with EPE pearl cotton, without adhesive fixation, and cannot prevent shifting and slipping, etc.; or they are sticky, but the adhesive used has poor weather resistance, easy yellowing, and poor pollution. It is easy to produce mist pollution such as watermarks, because the products to be protected are some high-end, precision, optical products, and functional layer products, which will have adverse effects on their appearance and performance

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