PET gold stamping base film and preparation method thereof

A gold base film and base film technology, applied in chemical instruments and methods, flat products, other household appliances, etc., can solve the problems of affecting the effect of hot stamping, poor high temperature resistance, insufficient tensile performance, etc., and achieve complete hot stamping. , the effect of large tensile strength and excellent shrinkage resistance

Inactive Publication Date: 2017-02-22
江苏三房巷薄膜股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing PET hot stamping base film has poor high temperature resistance, insufficient te

Method used

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  • PET gold stamping base film and preparation method thereof
  • PET gold stamping base film and preparation method thereof
  • PET gold stamping base film and preparation method thereof

Examples

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[0031] The specific embodiments of the present invention will be further described below in conjunction with the drawings and embodiments. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0032] Such as Figure 1-Figure 4 As shown, a PET bronzing base film includes a core layer 2 located in the middle and a surface layer 17 provided on both surfaces of the core layer 2. The surface layer 17 and the core layer 2 are integrally formed by co-extrusion and biaxial stretching. The core layer 2 is a PET layer, and the surface layer 17 is a PET layer mixed with an anti-blocking agent.

[0033] The weight ratio of the raw material components of the surface layer 17 and the core layer 2 is: surface layer 17: film polyester melt 80%~90%, anti-blocking agent masterbatch 10%-20%; core layer 2: film polyester melt Body 100%; the total content of anti...

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Abstract

The invention discloses a PET gold stamping base film and a preparation method thereof. The PET gold stamping base film comprises a core layer located in the middle and surface layers arranged on two surfaces of the core layer, wherein the surface layers and the core layer are integrally molded through co-extrusion and biaxial stretching; the core layer is a PET layer; each surface layer is a PET layer mixed with an anti-blocking agent; the preparation method comprises the steps of synthesizing a polyester, commixing, co-extruding, casting a piece on a die head, carrying out longitudinal stretching, carrying out transverse stretching, drawing and trimming, winding and slitting to obtain a finished product, wherein the thickness is 10mu m to 36mu m, the width is 8700mm, the heat-resistance temperature exceeds 120 DEG C, the tensile strength is more than or equal to 220MPa, the heat shrinkage rate is smaller than or equal to 3.5 percent, and the surface friction coefficient of the base film is smaller than or equal to 0.55. Compared with a conventional transferring base film, the PET gold stamping base film provided by the invention has excellent shrinkage-proof performance; the gold stamping base film has excellent thermal stability and great tensile strength, and can meet the requirements of customers to produce gold stamping films which are not deformed at a high temperature, are completely subjected to gold stamping and have complete and clear patterns and texts.

Description

technical field [0001] The invention relates to a PET bronzing base film and a preparation method thereof. Background technique [0002] As we all know, with the rapid development of the packaging and printing industry, the requirements for anti-counterfeiting and decoration effects of packaging folding cartons in industries such as tobacco packaging, daily chemical products, and medicine are also increasing accordingly. Packaging and printing factories are constantly increasing investment in new equipment while meeting market demand. Great progress has been made in the utilization of new materials, research of new technologies and development of new processes. Post-press processing has become the most profitable business. magic weapon. Among them, the hot stamping process has become an important process in the post-press processing process due to its special role in decoration and anti-counterfeiting. [0003] Hot stamping, the scientific name is anodized aluminum hot sta...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/18B32B27/06B32B33/00B32B38/00B32B43/00B29D7/01B29C47/06B29K67/00
CPCB32B27/36B29C48/0018B29C48/0022B29C48/022B29C48/08B29C48/21B29K2067/003B29L2007/002B29L2009/00B32B27/08B32B27/18B32B33/00B32B38/0012B32B43/003B32B2038/0028B32B2307/40B32B2307/54
Inventor 薛超沈陈斌卞伟冬
Owner 江苏三房巷薄膜股份有限公司
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