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Patent Searching and Data


Title:
COATING COMPOSITION FOR PET FILM, PET TRANSFER FILM, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/238969
Kind Code:
A1
Abstract:
The present invention relates to the field of inkjet printing. Provided are a coating composition for a PET film, a PET transfer film, and a preparation method therefor and the use thereof. The coating composition comprises the following components by weight based on a total weight of 100 parts: 10-30 parts of polyvinyl butyral ester, 5-10 parts of a water-based polyurethane, 5-10 parts of polyvinyl alcohol, 0.5-1 part of a coupling agent and the balance being water. The coating composition is coated on a PET film, the PET film is applied to a printing process of pure cotton or cotton blended fabric, and the polyvinyl butyral ester in the coating composition has a network structure and has an ink absorption effect. Both polyvinyl alcohol and a coupling agent are slowly cross-linked in the coating, which slows down the diffusion of the ink to an inner layer of the coating and prevents the ink from being mixed into the coating longitudinally. After coating, the water-based polyurethane forms a network structure by means of the reaction of itself, and locks the ink in the network structure, such that the saturated ink absorption capacity of the PET transfer film can be increased after the coating composition is applied to the PET film.

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Inventors:
LIU DEXIANG (CN)
Application Number:
PCT/CN2021/095987
Publication Date:
December 02, 2021
Filing Date:
May 26, 2021
Export Citation:
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Assignee:
ZHUHAI PRINT RITE NEW MAT CO LTD (CN)
International Classes:
C09D129/14; C08J7/04; C08L67/02; C09D7/61; C09D7/63; C09D7/65; C09D129/04; C09D175/08; D06P3/60; D06P3/82; D06P5/26
Foreign References:
CN111704834A2020-09-25
CN111607286A2020-09-01
CN106280682A2017-01-04
CN106928483A2017-07-07
CN111186227A2020-05-22
Attorney, Agent or Firm:
INNOPAT INTELLECTUAL PROPERTY CO., LTD. (CN)
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