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Printable composite molding bottom film and preparation method thereof

A composite molding and bottom film technology, which is applied in chemical instruments and methods, synthetic resin layered products, flat products, etc. Water volume, effects to fix cursor tracking issues

Inactive Publication Date: 2020-02-04
SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the surface layer of this type of co-extruded film is PA, because PA is very easy to absorb water, when this type of co-extruded film is combined with other films, it is easy to generate air bubbles, making it difficult for this type of co-extruded film to be used as a printed base film for packaging
Moreover, when the co-extruded film is used as the base film, it will produce serious curls after sterilization, and customers have complained about such problems many times

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The printable composite molding base film structure of this embodiment is from top to bottom: CPP layer, printing layer (ink), adhesive layer (TIE), PA layer, barrier layer and heat-sealing layer, wherein:

[0044] The CPP layer is made of CPP produced by Xiantao Huishi Plastic Industry Co., Ltd., with a thickness of 30 μm;

[0045] The printing layer is made of UMT99-F boiled series ink produced by Suzhou Zhongya Ink Co., Ltd.;

[0046] The adhesive layer is selected from the solvent-free adhesive produced by Fuller Company, the model is WD4120 / XR1500;

[0047] The PA layer, the barrier layer and the heat-sealing layer are co-extruded films made by a multi-layer co-extrusion process;

[0048] The thickness of the co-extruded film in this embodiment is 100 μm, the structure of the co-extruded film is PA, the barrier layer is EVOH, and the heat-sealing layer is PE.

[0049] The preparation method of a kind of printable composite molding base film of the present embodim...

Embodiment 2

[0058] The printable composite molding base film structure of this embodiment is the same as that of Embodiment 1, the difference is that,

[0059] The CPP is 50 μm;

[0060] The printing layer uses the UMT99-R boiled series ink produced by Suzhou Zhongya Ink Co., Ltd.;

[0061] The structure of the co-extruded film is PA, the barrier layer is EVOH, and the heat-sealing layer is PP, that is, the structure of the co-extruded film is PA / EVOH / PP, and the thickness of the co-extruded film in this embodiment is 130 μm.

[0062] The preparation method of the printable composite molding bottom film of this embodiment is the same as that of Example 1, the difference is that in step S2, the viscosity of the ink is 12S; the oven temperature is 45°C;

Embodiment 3

[0064] The printable composite molding base film structure of this embodiment is the same as that of Embodiment 1, the difference is that,

[0065] The CPP is 70 μm;

[0066] The structure of the co-extruded film is PA, the barrier layer is PA, and the heat-sealing layer is PE, that is, the structure of the co-extruded film is PA / PA / PE, and the thickness of the co-extruded film in this embodiment is 180 μm.

[0067] The preparation method of the printable composite molding bottom film of this embodiment is the same as that of Embodiment 1, the difference is that in step S2, the viscosity of the ink is 13S; the oven temperature is 45°C.

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Abstract

The invention relates to a printable composite molding bottom film, and further relates to a preparation method of the printable composite molding bottom film. The printable composite molding bottom film includes a CPP layer, a printing layer, an adhesive layer, a PA layer, a barrier layer and a heat-seal layer in sequence from top to bottom, wherein the thickness of the CPP layer is 30 [mu]m, theprinting layer is water-boiled ink, the adhesive layer is a solvent-free adhesive, the PA layer, the barrier layer and the heat-seal layer are co-extruded films which are prepared by a multi-layer co-extrusion process, and the thickness of each co-extruded film is 100 [mu]m-200 [mu]m. Through the improvement of the structure of a composite molding bottom film, the problem of ink shedding is solved, the curling problem can be effectively solved, and the degree of curl is increased. Through the preparation method of the printable composite molding bottom film, the peel strength of the compositemolding bottom film can be effectively improved, and lamination of the composite molding bottom film can be avoided during molding.

Description

technical field [0001] The invention relates to the technical field of a food forming packaging film, in particular to a printable composite forming base film and a preparation method thereof. Background technique [0002] Usually, when the co-extrusion film is used as the base film, the transparent film is the main one. If printing design needs to be added, the surface printing process can only be used to print on the surface of the co-extrusion film, but most of the surface printing is not firm. , because the adhesion of the ink is less than the force generated when the film is stretched, the ink is easy to fall off, causing problems such as polluting other products and affecting the appearance of the packaging. Moreover, during the customer’s use, since the co-extrusion film will pass through the oven during printing, the shrinkage rate of the co-extrusion film will be inconsistent after heating, causing the shrink film to curl up, which will lead to deformation of the pr...

Claims

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Application Information

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IPC IPC(8): B32B27/34B32B27/32B32B27/08B32B27/30B32B7/12B32B33/00B29C69/00B29C48/10B29L7/00B29L9/00B65D65/40
CPCB29L2007/00B29L2009/00B32B7/12B32B27/08B32B27/30B32B27/32B32B27/34B32B33/00B32B2250/24B32B2307/306B32B2307/50B32B2439/70B65D65/40B29C48/0017B29C48/0021B29C48/0023B29C48/10
Inventor 吴俊杨伟顾春明
Owner SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
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