BOPP thermosensitive membrane and production method thereof
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A manufacturing method and heat-sensitive technology, which can be used in chemical instruments and methods, papermaking, textiles and papermaking, etc., can solve problems such as unsatisfactory use requirements, achieve high protection performance and printing adaptability, meet firm bonding, and excellent three-proof performance effect
Inactive Publication Date: 2019-07-02
JIANGSU WANBAO RUIDA HI TECH CO LTD
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Problems solved by technology
The process design of the chromogenic layer and top coat used in general thermal paper cannot meet the requirements of use, and it is necessary to optimize the leuco dye, chromogenic agent, sensitizer and protective coating adhesive of the chromogenic coating. And adjust the optimal ratio to achieve the best product performance
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Embodiment 1
[0035] The manufacture method of above-mentioned BOPP thermosensitive film, comprises the steps:
[0036] (1) Choose a light-sub-BOPP film as the coating substrate, and the weight is 55g / m 2 ;
[0037] (2) Preparation of primer coating solution: Add hollow balls into the batching tank, start stirring, add dispersant, pure acrylic latex, water-based chlorinated polypropylene emulsion, CMC, defoamer, lubricant, and stir at low speed Stir for 30 minutes to form an undercoat coating solution for use;
[0038] Described undercoat is made up of following component by weight shown:
[0040](3) Preparation of chromogenic layer coating solution: add water to the chromogenic layer batching tank, start stirring, add dispersant, defoamer, color developer 3,3′-diallyl-4,4′-di Hydroxydipheny...
Embodiment 2
[0048] The manufacture method of above-mentioned BOPP thermosensitive film, comprises the steps:
[0049] (1) Use double-sided glossy BOPP film as the coating substrate, with a weight of 65g / m 2 ;
[0050] (2) Preparation of primer coating solution: Add hollow balls into the batching tank, start stirring, add dispersant, pure acrylic latex, water-based chlorinated polypropylene emulsion, CMC, defoamer, lubricant, and stir at low speed Stir for 30 minutes to form an undercoat coating solution for use;
[0051] Described undercoat is made up of following components by weight shown:
[0053] (3) Preparation of chromogenic layer coating solution: Add water to the chromogenic layer batching tank, start stirring, add dispersant, defoamer, color developer 2,4-diphenylsulfone phenol g...
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Abstract
The invention discloses BOPP thermosensitive membrane and a production method thereof. The BOPP thermosensitive membrane comprises BOPP base membrane, a base coat layer, a chromogenic layer and a protective layer, wherein the base coat layer, the chromogenic layer and the protective layer are sequentially arranged on the BOPP base membrane. The production method of the BOPP thermosensitive membrane comprises the following steps of (1) selecting BOPP membrane as a coating base material; (2) producing base coat layer coating layer; (3) producing chromogenic layer coating liquid; (4) producing protective layer coating liquid; and (5) pumping the coating liquid of the various layers into coating machine material grooves respectively, and adopting a measuring bar coating method for sequentiallycoating the base coat layer, the chromogenic layer and the protective layer over the paper base material. The product has high-definition printing performance, and the printing requirements of printers with different energy are met; the product has excellent resistance to dry and wet rubbing and three proofing performance, and can be used in environments in contact with water and oil for a long time; and before and after printing, the product can be repeatedly rubbed without coating shedding, and no developed images are lost, so that information fidelity in practical use is guaranteed.
Description
technical field [0001] The invention relates to the technical field of heat-sensitive materials, in particular to a BOPP heat-sensitive film and a manufacturing method thereof. Background technique [0002] With the development of the domestic economy, heat-sensitive films are used more and more widely in daily life, and the demand for products has also undergone qualitative changes. In China, most of the paper-plastic composite mode was used, but now it is gradually converted to the direct coating mode of BOPP film to meet the needs of water and oil contact occasions such as frozen food, fresh food, meat processing, and logistics labels. [0003] Generally, the heat-sensitive coating technology coated with paper substrates can simply use styrene-butadiene latex or ordinary water-soluble PVA as the adhesive for the base coat combined with the paper base, and the proportion of use can generally not exceed 10% of the total dry weight. % can achieve good bonding strength and m...
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