Production technology of TPU-substrate invisible car cover protection film

A production process and technology of protective film, applied in the direction of pressure-sensitive film/sheet, film/sheet release coating, film/sheet adhesive, etc., can solve the problem of high cost, glue residue, poor durability of protective film, etc. problem, to achieve the effect of improving utilization

Inactive Publication Date: 2019-08-30
NINGBO JIAHUA NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the current TPU base car surface paint protection film has poor durability, the problem of glue residue in use, and the problem of high cost and waste of consumables in the production process.

Method used

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  • Production technology of TPU-substrate invisible car cover protection film
  • Production technology of TPU-substrate invisible car cover protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The present embodiment provides a kind of manufacturing process of the invisible car clothing protection film of TPU base material, specifically as follows:

[0060] First form the TPU substrate layer, and the raw material formula is: 86 parts of polyester-polyether copolymer; 1-6 parts of slip agent 1753; 6 parts of anti-UV agent #531, and 1 part of transparent masterbatch. Dry in a blast drying oven at 80°C for 4 hours, wait until the barrel of the single-screw extruder rises to 180°C in zone 1, 210°C in zone 2, 210°C in zone 3, 220°C in zone 4, 220°C at the adapter, and the temperature of the die at the head rises to 220°C: Add the above granules for melting and plasticization, extrude and cast through a casting die with a gap of 0.15mm, and continuously pass through a horizontal three-roll calender with a preset roll distance to calender and cool with circulating water to form the required film . The thickness of the original TPU film produced by this method is 0.1...

Embodiment 2

[0068] The substrate layer formula of TPU in this embodiment: 91 parts of polyester-polyether copolymer; 1-5 parts of slip agent 1753; 3 parts of anti-UV agent #531, and 1 part of transparent masterbatch. Dry in a blast drying oven at 80°C for 4 hours, wait until the barrel of the single-screw extruder rises to 180°C in zone 1, 210°C in zone 2, 210°C in zone 3, 220°C in zone 4, 220°C at the adapter, and the temperature of the die at the head rises to 220°C: Add the above granules for melting and plasticization, extrude and cast through a casting die with a gap of 0.15mm, and continuously pass through a horizontal three-roll calender with a preset roll distance to calender and cool with circulating water to form the required film .

[0069] The produced TPU original film, because TPU is a non-polar material, has low surface activity and needs to be pretreated with aliphatic polyurethane. Polyurethane oligomers are selected as the pretreatment agent and diluted to a certain conc...

Embodiment 3

[0072] The substrate layer formula of TPU in this embodiment: 91 parts of polyester-polyether copolymer; 1-5 parts of slip agent 1753; 3 parts of anti-UV agent #531, and 1 part of transparent masterbatch. Dry in a blast drying oven at 80°C for 4 hours, wait until the barrel of the single-screw extruder rises to 180°C in zone 1, 210°C in zone 2, 210°C in zone 3, 220°C in zone 4, 220°C at the adapter, and the temperature of the die at the head rises to 220°C: Add the above granules for melting and plasticization, extrude and cast through a casting die with a gap of 0.15mm, and continuously pass through a horizontal three-roll calender with a preset roll distance to calender and cool with circulating water to form the required film .

[0073] One side of the TPU substrate is directly coated. The pretreatment layer is formed by mixing butanone and ethyl acetate, wherein the mixing ratio of butanone and ethyl acetate is 1:8. The anti-scratch coating is composed of 3,7-dimethyloct...

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Abstract

The invention discloses a production technology of a TPU-substrate invisible car cover protection film. The TPU-substrate invisible car cover protection film is produced according to the following steps: (1), forming a TPU substrate layer; (2), pretreating the substrate layer; (3), forming a lower adhesive layer; (4), performing film transfer; (5), forming an upper adhesive layer; (6), forming a protective layer. In the TPU-substrate invisible car cover protection film, the protective layer is made of PET, the substrate layer is made of a polyester-polyether copolymer system, and a release layer is made of PET; the lower adhesive layer is an aliphatic pressure-sensitive adhesive, and the upper adhesive layer is aliphatic polyurethane or carbamate-acrylic based surface coating. A TPU substrate of the of TPU-substrate invisible car cover protection film has relatively high modulus and strength, so that good weather resistance, gloss, transparency, crystal flow pattern and other requirements are guaranteed; the adhesive layers have strong adhesion to the substrate layer and have high raw material utilization rate, and during using, the adhesive layers provide suitable initial adhesionand permanent adhesion for the surface of car paint, so that the advantage that glue does not remain on the paint surface is achieved.

Description

technical field [0001] The invention relates to polymer products, in particular to a formula and a manufacturing process of an automobile surface paint protection film. Background technique [0002] At present, as automobiles, home furnishing and high-end equipment enter thousands of households and all walks of life, especially automobiles have become the basic equipment of most ordinary families. The original paint of automobiles is easily damaged due to long-term exposure to the external environment. maintain. How to protect the surfaces of automobiles and households from extreme climate changes, especially the harsh external environment, has become a topic that must be considered in the industry, and must also meet environmental protection requirements. [0003] At present, the method of covering the paint surface with a protective film is generally adopted. The common protective film is a TPU substrate protective film, but its defects limit its popularization and use, m...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/50C09J7/38C09J7/30C08L75/04C08J5/18C09J201/00
CPCC08J5/18C08J2375/04C09J201/00C09J2400/22C09J2475/006C09J7/25C09J7/30C09J7/38C09J7/50
Inventor 倪利华千胜宇葛政台
Owner NINGBO JIAHUA NEW MATERIAL TECH CO LTD
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