TPU film continuous coating production system and method

Abstract

The invention discloses a TPU film continuous coating production system and method. The TPU film continuous coating production system comprises a first unreeling unit, a guiding-connecting unit, a first stripping unit, a coating unit, a drying unit and a UV solidification unit. A film body is unreeled by the first unreeling unit, the guiding connecting unit is used for connecting a protection filmon the surface of the side, attached with a guiding film, of an unreeled TPU substrate film; the first stripping unit is used for stripping a protection film on the surface of the other side, not connected with the guiding film, of the TPU substrate film; the coating unit is used for coating polymers to the surface of the TPU substrate film with the stripped protection film to form a coating layer; the drying unit is used for drying the surface of the coated TPU substrate film through a drying oven; and the UV solidification unit is used for conducting ultraviolet solidification treatment onthe dried TPU substrate film through a UV light. According to the TPU film continuous coating production system and method, a traditional direct roll-to-roll connection method for a to-be-coated material is abandoned, the disadvantages that an interlayer material is not easily connected and is difficult to firmly bond are avoided, and by adding a middle bearing film as the guiding film, the effects that the production efficiency is accelerated, the connection strength is improved, TPU film heating in the drying oven is avoided, and thus the product quality is improved are achieved.

Description

technical field [0001] The invention relates to the technical field of TPU, in particular to a continuous coating production system and method for a TPU film. Background technique [0002] TPU film has excellent characteristics such as high strength, high toughness, wear resistance, oil resistance, cold resistance, aging resistance, environmental protection, non-toxic, and degradable, which are incomparable to other plastics and rubbers; Excellent properties such as high resistance to deformation, nicks and scratches, i.e. hardness, over a wide range, and, even under enhanced conditions, elasticity and wear resistance. At the same time, the TPU film has excellent performance in terms of bearing capacity, resistance to strong impact force and reduction of vibration. In general, it has high mechanical strength. Due to the above characteristics, TPU film can be used in many industrial and civil fields. It is a green film and an ideal substitute for PVC film. [0003] TPU film...

AI Technical Summary

Problems solved by technology

However, due to the special properties of the TPU film itself, it is difficult to bond, and its heat resistance is not good, so there are many inconveniences in continuous production. For example, due to the molecular structure of the TPU film itself, it is difficult to stick ordinary tape. , to bond the TPU surface of the previous roll and the protective film surface (PET) of the next TPU surface, it is difficult to form a firm joint; change the roll in the conventional way, and the TPU protective film product will stay in the oven for an extended period of time when the cloth is connected Due to the poor heat resistance of the TPU material itself, it will cause the film to deform under the action of tension and temperature, which will affect the product quality

Images