Environment-friendly non-PVC (polyvinyl chloride) digital inkjet car body sticker

A digital inkjet, environmentally friendly technology, applied in the field of car body film, can solve the problems of reduced service life, easy aging and yellowing of printing film, etc., to improve the performance of ink absorption and ink fixing, improve toughness and resilience, and excellent environmental performance. Effect

Pending Publication Date: 2022-04-12
南通百纳数码新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention provides a polyester inkjet printing film with high adhesion to ink, simple manufacturing process and convenient operation. The printing film is only suitable for inkjet printing with polar solvents
At the same time, the presence of benzene-based plasticizers makes the printed film prone to aging and yellowing during outdoor use, reducing the service life

Method used

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  • Environment-friendly non-PVC (polyvinyl chloride) digital inkjet car body sticker

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of the present invention comprises the following steps:

[0025] A, the first polyester, the second polyester, filler, plasticizer, auxiliary agent are mechanically stirred and mixed uniformly;

[0026] B. Afterwards, the mixture is extruded and granulated, and then cast.

[0027] The mixing process is carried out at room temperature; the mixing time is 10-20 minutes.

[0028] The extrusion is carried out in a twin-screw extruder; the aspect ratio of the screw is 43:1; the temperature of the first zone of the twin-screw extruder is 120-125°C, the temperature of the second zone is 145-150°C, and the temperature of the third zone is 145-150°C. The temperature in the zone is 160-165°C, the temperature in the fourth zone is 170-175°C, the temperature in the fifth zone is 180-185°C, the temperature in the sixth zone is 190-195°C, the temperature in the seventh zone is 190-195°C, and the temperature in the eighth zone is 190-190°C. 195°C, the temperat...

Embodiment 1

[0031] At room temperature, 100 parts by weight of PETG, 50 parts by weight of TPU, 15 parts by weight of PTL, 5 parts by weight of TiO 2 , 15 parts by weight SiO 2 , stirred and mixed in a high-speed mixer for 15 minutes to obtain a mixed material, and then added the mixed material to a twin-screw extruder to extrude and granulate. After the particles were dried, they were cast into a film by a casting machine to obtain a thickness of 0.08. ~0.2mm environment-friendly non-PVC digital spray-painted body film.

[0032] The temperature of the first zone of the twin-screw extruder is 120°C, the temperature of the second zone is 145°C, the temperature of the third zone is 160°C, the temperature of the fourth zone is 170°C, the temperature of the fifth zone is 180°C, the temperature of the sixth zone is 190°C, and the temperature of the seventh zone is 190°C. The temperature is 192°C, the temperature in the eighth zone is 195°C, and the temperature in the ninth zone is 185°C;

[...

Embodiment 2

[0039] 100 parts by weight of PETG, 60 parts by weight of TPU, 15 parts by weight of PTL, 5 parts by weight of TiO 2 , 15 parts by weight SiO 2 , stirred and mixed in a high-speed mixer for 15 minutes to obtain a mixed material, and then added the mixed material to a twin-screw extruder to extrude and granulate. After the particles were dried, they were cast into a film by a casting machine to obtain a thickness of 0.08. ~0.2mm environment-friendly non-PVC digital spray-painted body film.

[0040] The operating parameters of the extruder were the same as in Example 1.

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Abstract

The invention discloses an environment-friendly non-PVC (polyvinyl chloride) digital inkjet car body sticker which is prepared from the following raw materials in parts by weight: 100 parts of first polyester, 30-100 parts of second polyester, 5-30 parts of filler, 5-20 parts of plasticizer and 0-10 parts of auxiliaries. Compared with a digital inkjet car body sticker in the prior art, the environment-friendly non-PVC digital inkjet car body sticker has the advantages of environmental friendliness and high ductility, and can achieve the inkjet performance of a PVC film.

Description

technical field [0001] The invention relates to the technical field of car body stickers, in particular to an environment-friendly non-PVC digital spray-painted car sticker. Background technique [0002] Inkjet printing has the advantages of high resolution, flexible design and fast printing speed. It has become the first choice for digital printing methods and is widely used in exhibition halls, shopping malls, buses, subways and other public places and transportation facilities. The ink absorption and solidity of inkjet printing media play a vital role in the quality of the pattern presented. The inkjet film produced with PVC as the main raw material has bright colors, good extensibility, low cost and easy to use. And other advantages, is currently the most popular inkjet printing media in the industry. The preparation of PVC inkjet film often needs to be combined with various modification additives, including plasticizers, stabilizers, fillers and other materials to impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L75/04C08K3/22C08K3/36C08K7/26C08J5/18
Inventor 孔俊俊颜小香
Owner 南通百纳数码新材料有限公司
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