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Label film with coating and preparation method thereof

A coating and self-contained technology, which is applied in the directions of labels, chemical instruments and methods, lamination, etc., can solve the problems of simple label film structure, easy printing ink loss, etc., to reduce costs, enhance durable adhesion, and improve efficiency Effect

Active Publication Date: 2021-06-29
汕头市安雅塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a self-coated label film and its preparation method, which solves the problem that the existing label film has a simple structure and is easy to print ink off after a long time

Method used

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  • Label film with coating and preparation method thereof
  • Label film with coating and preparation method thereof
  • Label film with coating and preparation method thereof

Examples

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preparation example Construction

[0052] A kind of preparation method of self-coated label film of the present invention, such as figure 2 shown, including the following steps:

[0053] A. Preparation and weighing: Weigh the outer film raw materials, middle film raw materials, and inner film raw materials, and add them to the corresponding barrels.

[0054] B. Mixing: Stir and mix the raw materials of the outer layer film, the middle layer film and the inner layer film respectively.

[0055] C. Drying and dust removal: After step B is completed, the raw materials of the outer film, the middle film and the inner film are fed into hot air for drying and dust is taken away at the same time.

[0056] D. Suction and transportation: The three raw materials are transported to the hoppers of the three extruders through the vacuum suction device, and the three raw materials enter the feeding section of the extruder by their own weight.

[0057] E. Extrusion and melting: After the three raw materials enter the extrud...

Embodiment 1

[0069] A self-coated label film and a production method thereof, comprising the following steps:

[0070] A. Take by weighing as follows:

[0071] Outer layer film 20kg, wherein the EVA resin of 80% mass parts, the content of VA in the EVA resin is 10%; The EAA resin of 20% mass parts, the content of AA in the EAA resin is 5%;

[0072] Intermediate film 60kg, wherein 58.5% by mass of high-density polyethylene, 19.5% by mass of low-density polyethylene and 22% by mass of white masterbatch;

[0073] Inner film 20kg, wherein 100% by mass of EVA resin, the content of VA in the EVA resin is 18%;

[0074] Add to the corresponding bucket.

[0075] B. Stir and mix the raw materials of the outer layer film, the middle layer film and the inner layer film respectively, and the stirring time is 45 minutes.

[0076] C. After step B is completed, pass the raw materials of the outer layer film, the middle layer film and the inner layer film into hot air for drying respectively. The temper...

Embodiment 2

[0090] A self-coated label film and a production method thereof, comprising the following steps:

[0091] A. Take by weighing as follows:

[0092] Outer layer film 10kg, wherein the EVA resin of 80% mass parts, the content of VA in the EVA resin is 15%; The EAA resin of 20% mass parts, the content of AA in the EAA resin is 10%;

[0093] 80kg of interlayer film, wherein 68.5% by mass of high-density polyethylene, 15.5% by mass of low-density polyethylene and 16% by mass of white masterbatch;

[0094] Inner film 10kg, wherein 100% by mass of EVA resin, the content of VA in the EVA resin is 15%;

[0095] Add to the corresponding bucket.

[0096] B. Stir and mix the raw materials of the outer layer film, the middle layer film and the inner layer film respectively, and the stirring time is 45 minutes.

[0097] C. After step B is completed, pass the raw materials of the outer layer film, the middle layer film and the inner layer film into hot air for drying respectively. The temp...

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Abstract

The invention discloses a label film with a coating. The label film comprises an outer-layer film, a middle-layer film and an inner-layer film, wherein a mass ratio of the outer-layer film to the middle-layer film to the inner-layer film is (5-20): (60-90): (5-20); the outer-layer film comprises 80% by mass of EVA resin and 20% by mass of EAA resin, the content of VA in the EVA resin is 10%-20%, and the content of AA in the EAA resin is 5%-15%; the density of the middle-layer film is 0.98-1.08 kg / m<3>, and the middle-layer film comprises, in parts by mass, 58.5-68.5% of high-density polyethylene, 15.5-19.5% of low-density polyethylene and 16-22% of functional master batch; and the inner-layer film is 100% by mass of EVA resin, and the content of VA in the EVA resin is 15-20%. The surface layer of the label film with the coating is made of an EVA+EAA resin material; after corona treatment, the surface polarity of the outer-layer film can be stronger and more lasting, so the lasting adhesive force of ink is greatly enhanced, and high-quality printing can be met; and meanwhile, cost is reduced, efficiency is improved, and environmental protection is facilitated.

Description

technical field [0001] The invention relates to a label film and a preparation method thereof, belonging to the technical field of plastic film production, in particular to a self-coated label film and a preparation method thereof. Background technique [0002] Label film is a kind of film label printed on plastic film or plastic tube with special ink. Packaging of by-products, dry food, souvenirs, etc. The customers in the label film market are mainly some large fast-moving consumer goods companies, such as Procter & Gamble, Unilever, and Shanghai Jahwa. [0003] The performance of each layer of the existing label film is consistent, and the printing surface is only treated with corona. Since the outer layer is made of polyethylene, the waxy small molecules in the polyethylene will slowly migrate to the surface layer to form a waxy shell over time. The reason why the vinyl label film cannot be printed after a long time. If the printing sticker factory wants the film to n...

Claims

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Application Information

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IPC IPC(8): B32B27/30B32B27/32B32B27/08B32B27/18B32B38/00C08J5/18C08L23/08C08L23/06B29D7/01
CPCB32B27/306B32B27/32B32B27/08B32B27/18B32B38/0036B32B38/0012C08J5/18B29D7/01B32B2250/246B32B2307/406B32B2307/75B32B2519/00C08J2323/08C08J2423/08C08J2423/06C08J2323/06
Inventor 王叙丹陈芝坤
Owner 汕头市安雅塑胶制品有限公司
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