Film coating method of sterile paper box paper blank

A technology of paper base and film coating, which is applied in the field of film coating of aseptic carton paper base, which can solve the problems that the flatness of the film surface after film coating cannot be guaranteed, and easy to produce wrinkles and air bubbles, etc., and achieve moderate viscosity and good flatness , the effect of uniform contact

Inactive Publication Date: 2019-07-19
安徽省三环康乐包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing aseptic cartons generally need to be coated during production, but the existing coating process cannot guarantee the flatness of the film surface after coating, and it is easy to produce wrinkles, air bubbles and other phenomena, resulting in defective

Method used

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  • Film coating method of sterile paper box paper blank
  • Film coating method of sterile paper box paper blank

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for covering a sterile carton blank, comprising the steps of:

[0025] A. Material collection: take BOPP specification film with a thickness of 15 μm, and corona treat the BOPP film;

[0026] B, gluing: use a gluing roller to coat a film surface of the BOPP film after the above-mentioned steps;

[0027] C. Paper base treatment: evenly apply leveling agent solution to the film-coated surface of the paper base;

[0028] D, film covering: the BOPP film after the step B treatment is covered on the film covering surface of the paper blank after the step C treatment;

[0029] E. Softening of the drying tunnel: Put the paper blank after the film-coating treatment in step D into a drying tunnel with a length of 150 cm, set the temperature of the drying tunnel at 60°C, and keep the atmospheric pressure in the drying tunnel at a low pressure state, so that the paper blank is covered with BOPP film high temperature softening;

[0030] F, forming: the paper base process...

Embodiment 2

[0038] A method for covering a sterile carton blank, comprising the steps of:

[0039] A. Material collection: take BOPP specification film with a thickness of 15 μm, and corona treat the BOPP film;

[0040] B, gluing: use a gluing roller to coat a film surface of the BOPP film after the above-mentioned steps;

[0041] C. Paper base treatment: evenly apply leveling agent solution to the film-coated surface of the paper base;

[0042] D, film covering: the BOPP film after the step B treatment is covered on the film covering surface of the paper blank after the step C treatment;

[0043] E. Softening of the drying tunnel: put the paper blank after the film-coating treatment in step D into a drying tunnel with a length of 140cm, set the temperature of the drying tunnel at 63°C, and keep the atmospheric pressure in the drying tunnel at a low pressure state, so that the paper blank is covered with BOPP film high temperature softening;

[0044] F, forming: the paper base processe...

Embodiment 3

[0052] A method for covering a sterile carton blank, comprising the steps of:

[0053] A. Material collection: take BOPP specification film with a thickness of 17 μm, and perform corona treatment on the BOPP film;

[0054] B, gluing: use a gluing roller to coat a film surface of the BOPP film after the above-mentioned steps;

[0055] C. Paper base treatment: evenly apply leveling agent solution to the film-coated surface of the paper base;

[0056] D, film covering: the BOPP film after the step B treatment is covered on the film covering surface of the paper blank after the step C treatment;

[0057] E. Softening of the drying tunnel: put the paper blank after the film-coating treatment in step D into a drying tunnel with a length of 120cm, set the temperature of the drying tunnel at 61°C, and keep the atmospheric pressure in the drying tunnel at a low pressure state, so that the paper blank is covered with BOPP film high temperature softening;

[0058] F, forming: the pape...

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PUM

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Abstract

The invention relates to the technical field of coating films, in particular to a film coating method of a sterile paper box paper blank. The film coating method comprises the steps of material taking, glue coating, paper blank treatment, film coating, drying tunnel softening, forming and film cutting. The film coating method has the beneficial effects that a BOPP film is selected; because the BOPP film is flexible, non-toxic, good in flatness, high in transparency and good in brightness, and has performances like wear resistance, water resistance, heat resistance and chemical corrosion resistance; in addition, the BOPP film is low in price and is an ideal composite material in a film coating process; the BOPP film subjected to corona treatment is relatively good in surface tension, so that the bending resistance and the deformation resistance of the BOPP film are good; and the coating surface of the paper blank is coated with a flatting agent solution, so that it can be beneficially realized that during subsequent film coating, the surface tension of an adhesive on the BOPP film surface is reduced, the contact between the adhesive and the paper blank is more uniform, contact gapsare reduced, and less bubbles are generated as a result.

Description

technical field [0001] The invention relates to the technical field of film covering, in particular to a film covering method for an aseptic carton blank. Background technique [0002] Lamination is a main process of post-press processing. It is to bond the plastic film coated with adhesive with the paper printed matter after heating and pressing to form a paper-plastic integrated product. It is currently a common One of the post-press processing techniques for paper printed matter. The coated printed matter has a smoother and brighter surface due to the addition of a thin and transparent plastic film on the surface, which not only improves the gloss and fastness of the printed matter, but also prolongs the service life of the printed matter. Waterproof, anti-fouling, wear-resistant, folding-resistant, chemical corrosion-resistant and other protective functions. If a transparent glossy film is used for lamination, the printed graphics and texts of the film-coated products ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M7/00B32B37/10B32B37/06B32B37/12B32B38/00B32B43/00
CPCB32B37/06B32B37/10B32B37/1284B32B38/00B32B38/0008B32B43/003B41M7/0036
Inventor 杨林
Owner 安徽省三环康乐包装材料有限公司
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