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PVC (polyvinyl chloride) heat-shrinkable label film and preparation method thereof

A heat-shrinkable, PVC resin technology, applied in the field of PVC heat-shrinkable label film and its preparation, can solve problems such as hidden dangers of environmental protection, poor softness and stiffness, etc.

Active Publication Date: 2022-06-28
YIXING GUANGHUI PACKAGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a PVC heat-shrinkable label film and a preparation method thereof. The purpose is to solve the problem that the PVC heat-shrinkable label film can only obtain image and color effects through printing, and the printing process and printed matter have certain environmental protection. Hidden dangers and problems; at the same time, the PVC heat shrinkable label film will become thicker and stiff after shrinking, and the technical problem of poor flexibility

Method used

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  • PVC (polyvinyl chloride) heat-shrinkable label film and preparation method thereof
  • PVC (polyvinyl chloride) heat-shrinkable label film and preparation method thereof
  • PVC (polyvinyl chloride) heat-shrinkable label film and preparation method thereof

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Embodiment Construction

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] 1. Preparation of viscose pearl powder microbeads with PMMA protective shell

[0024] 1. Pearl powder is selected from micron-level (average particle size ≤5μm).

[0025] Coupling treatment: Soak pearl powder in 10-15% silane coupling agent aqueous solution for 2-4 hours. The amount of silane coupling agent is 1-2% of the mass of pearl powder. Prepare the aqueous solution in advance for use, or use more The coupling agent is used in an excess solution of the appropriate concentration. Remove and drain the water, bake at 120°C for 2 hours, and set aside.

[0026] The molecular structural formula of the silane coupling agent is generally Y-R-Si(OR)3 (in the formula, Y-organic functional group, SiOR-siloxyl group). Siloxy groups are ...

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Abstract

The invention belongs to the technical field of high polymer material products, and particularly relates to a PVC heat-shrinkable label film and a preparation method thereof. The preparation method comprises the following steps: mixing PVC resin, a heat stabilizer, a plasticizer, viscose pearl powder microbeads with a PMMA protective shell, a processing aid, an internal lubricant and an external lubricant, plasticizing by an extruder, forming by a film blowing machine head, carrying out first film foaming, carrying out water bath heating, carrying out secondary blowing, carrying out second film foaming, cooling and shaping, thereby obtaining the PVC heat-shrinkable label film. According to the PVC heat-shrinkable label film prepared by the method provided by the invention, a combination of the viscose molding substance and the pearl powder is used as an additive of a PVC material, so that the surface of the PVC film presents differentiated glossiness, has pearl-like glossiness and is like that a plurality of small pearls are embedded on the film, and the surface of the PVC film can also be adhered to the surface of the film by virtue of the special performance of the viscose molding substance. The hand feeling flexibility of the PVC shrink film material is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer material products, in particular to a PVC heat shrinkable label film and a preparation method thereof. Background technique [0002] Heat shrinkable labels have become the main variety of beverage labels relying on the effect of shrinking body packaging and the effect of printing products with colorful and beautiful patterns. PVC heat-shrinkable labels have excellent mechanical, optical and surface properties, suitable heat-shrinkage properties, low cost and convenient processing. Although the PVC material itself faces certain environmental concerns and pressures, it still occupies an important position in the heat-shrinkable label market. and higher shares. PVC heat shrinkable labels are made of PVC heat shrinkable label films through printing, cutting, palm pressing, sleeve labeling and other processes. The printing generally adopts multi-color gravure printing in order to obtain more realistic...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L33/12C08L1/22C08K9/10C08K9/06C08K3/26C08J5/18
CPCC08J5/18C08J2327/06C08J2433/12C08J2401/22C08K9/10C08K9/06C08K2003/265C08K2003/267
Inventor 杨涛陈亚龙范琪
Owner YIXING GUANGHUI PACKAGE
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