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In-mold labeling label and production process thereof

A technology of in-mold labeling and production technology, which is applied in the direction of film/sheet adhesives, printing, instruments, etc. It can solve the problems of great influence of labeling, insufficient adhesion, and insufficient body fit, etc. Good transferability, good overprint accuracy, and high smoothness

Inactive Publication Date: 2020-09-08
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the stability of the label unit length has a great influence on labeling, if the unit length is too long, the label will exceed the reserved lap space and cover the graphics; if the unit length is too short, it will not fit well enough, resulting in wrinkles
The glue thickness will also affect the quality of in-mold labeling. The glue thickness mainly depends on the anilox parameters of the glue-coated anilox roller, and it is also related to the temperature of the anilox roller, the coating speed, and the temperature of the glue. If it is too thick, it will overflow and affect the appearance when it is lapped, and it should not be too thin to cause insufficient adhesion

Method used

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  • In-mold labeling label and production process thereof
  • In-mold labeling label and production process thereof
  • In-mold labeling label and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] S1. Printing: using gravure printing equipment, the temperature of the printing environment is 25°C, the relative humidity is 50%, and the printing temperature is 90g / m 2Print a layer of ink on one side of the coated paper, the printing speed is 120m / min, and the ink coating amount is 2g / m 2 , dry and solidify the ink at 65-80°C to form an ink layer;

[0039] S2. Quality inspection: Use rewinding equipment with high-speed cameras to detect printing defects on the printing film.

[0040] S3. Glue coating: choose A101 hot melt adhesive produced by Bostik (China) Adhesive Co., Ltd., with a softening point of 66°C, blended with 2wt% C22 erucic acid slip agent masterbatch, and use a heatable 100LPI*90um The anilox roll coats the blended hot melt adhesive on the other side of the coated paper. Set the temperature of the anilox roll to 165°C, the temperature of the hot melt adhesive to 170°C, and the coating speed to 100m / min to obtain a stable and suitable glue coating. Amo...

Embodiment 2

[0042] S1. Printing: using gravure printing equipment, the temperature of the printing environment is 25°C, the relative humidity is 50%, and the printing temperature is 90g / m 2 Print a layer of ink on one side of the coated paper, the printing speed is 130m / min, and the ink coating amount is 2.5g / m 2 , dry and solidify the ink at 65-80°C to form an ink layer;

[0043] S2. Quality inspection: Use rewinding equipment with high-speed cameras to detect printing defects on the printing film.

[0044] S3. Glue coating: choose A101 hot melt adhesive produced by Bostik (China) Adhesive Co., Ltd., with a softening point of 66°C, blended with 1% C22 erucic acid slip agent masterbatch, and use a heatable 100LPI*90um The anilox roll coats the blended hot melt adhesive on the other side of the coated paper. Set the temperature of the anilox roll to 170°C, the temperature of the hot melt adhesive to 175°C, and the coating speed to 100m / min to obtain a stable and suitable glue coating. Am...

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Abstract

The invention relates to the field of packaging, and in particular, relates to an in-mold labeling label and a production process thereof. The in-mold labeling label is prepared by printing ink on oneface of coated paper and coating EVA hot melt adhesive on the other face of the coated paper, wherein the weight of the coated paper is 80-100 g / m<2>, the ink coating amount is 1-3 g / m<2>, 1-2 wt% ofC22 erucic acid slip agent master batch is blended in the EVA hot melt adhesive, and the coating amount of the EVA hot melt adhesive on the coated paper is 8-12 g / m<2>. The in-mold labeling label hasthe characteristics of no reverse adhesion, good stability per unit length, stable and uniform gluing amount, accurate positioning of ring sealing and lap sealing, and firm sealing strength; the production process of the in-mold labeling label comprises the steps that gravure printing equipment is adopted for printing ink on one face of coated paper, the other face of the coated paper is coated with the hot melt adhesive through a heatable 100 LPI*90-[mu]m anilox roller, and the production process is easy to operate and convenient to apply and popularize.

Description

technical field [0001] The invention relates to the packaging field, in particular to an in-mold labeling label and a production process thereof. Background technique [0002] In-mold labeling (IML), as the name implies, is to complete the labeling work inside the mold. The difference between this packaging method and the general container processing technology is that the label delivery operation is added during the mold opening, thus realizing the integration of the labeling process and container production. The in-mold label needs to be fed in a single sheet and stand upright in the mold cavity, so the general requirements for the material are: stable size; good stiffness; good air release, etc. PS cups are widely used in food packaging, especially in low-temperature refrigerated yogurt packaging, where PS cups almost dominate the market. PS material is a non-polar material, and its printing suitability is not good. Therefore, a printed label is generally attached to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/21C09J7/30C09J123/08C09J11/06G09F3/02B41M1/10
CPCC09J7/21C09J7/30C09J123/0853C09J11/06G09F3/02B41M1/10G09F2003/023C09J2400/283C09J2423/04
Inventor 张和平刘学军潘安定胡凯张红斌陈旭
Owner HUANGSHAN NOVEL