Composite film with local pearl effect and preparation method thereof

A pearlescent effect and composite film technology, which is applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve the problems of limited application range, inability to prepare partial pearlescent packaging materials, and low strength of pearlescent films, and achieve Wide application range, good shelf effect, and bright appearance

Active Publication Date: 2011-01-05
河北永新包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the existing preparation process, it is impossible to prepare partial pearlescent packaging materials
In addition, the strength of the pearlescent film itself is relatively low, which limits the application range to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] a. Plate-making process: Convert relevant information into electronic file form according to requirements, and make plate rolls with corresponding patterns on the engraving machine according to the formed electronic files, and the plate rolls will be polished and ready for use.

[0039] b. Preparation of pearlescent ink: each component raw material is calculated by mass percentage as:

[0040] 10% pearl powder; 45% n-propyl ester; 12.18% isopropanol; 30% polyurethane resin;

[0041] Antistatic agent 0.8%; defoamer 2%; silver bar 0.02%;

[0042] The working viscosity of the ink is 17 seconds for No. 3 Zahn cup.

[0043] c. In the gravure printing process: the gravure printing process uses pre-made plate rollers, prints at a speed of 195 m / min, and the drying temperature is 65 ° C. The quality of such process parameters is the best.

[0044] d. Dry compounding process: compounding is carried out by a dry compounding machine, and the compounding speed is 90 m / min. The c...

Embodiment 2

[0047] Carry out repeatedly by the same step of described embodiment 1, but each composition raw material is counted by mass percent in the preparation of pearlescent ink:

[0048] Pearl powder 12%; N-propyl ester 41%; Isopropanol 10%; Polyurethane resin 35%;

[0049] Antistatic agent 0.5%; defoamer 1.47%; silver bar 0.03%.

[0050]The working viscosity of the ink is 18 seconds for No. 3 Zahn cup. In the gravure printing process, pre-made plate rolls are used to print at a speed of 180 m / min, and the drying temperature is 65 °C. Then compound by a dry compound machine at a compound speed of 95 m / min. The adhesive coating concentration is 2.5 g / m2, the viscosity is 20 seconds for No. 3 Zahn cup, and the drying temperature is 80 ° C.

Embodiment 3

[0052] Repeat the same steps described in Example 1, but each composition raw material is calculated by mass percentage in the pearlescent ink preparation:

[0053] Pearl powder 13%; N-propyl ester 35%; Isopropanol 10%; Polyurethane resin 40%;

[0054] Antistatic agent 0.47%; defoamer 1.5%; silver bar 0.03%.

[0055] The working viscosity of the ink is No. 3 Zahn Cup 19 seconds. The printing process in the gravure uses a pre-made plate roller, printing at a speed of 180 m / min, and a drying temperature of 65 ° C. Then compound with a dry compound machine at a compound speed of 95 m / min. The adhesive coating concentration is 2.5 g / m2, the viscosity is 18 seconds for No. 3 Zahn Cup, and the drying temperature is 70°C.

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PUM

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Abstract

The invention relates to a composite film with a local pearl effect and a preparation method thereof. The composite film is formed by compounding a heat-sealing layer and a printed layer, wherein the printed layer adopts a bidirectional stretching polyester film; the heat-sealing layer adopts a polyethylene film; and pearlized patterns are printed on the printed layer. The composite film is prepared by the steps of plate-making process, printing ink preparation, intaglio printing process, dry-type composite process and cutting process. The preparation of the composite film has the advantages of easy operation, low production and using cost, wide application range and capacity of preparing composite films of a plurality of material structures. The composite film has the advantages of prominent local pearl effect, strong visual impact and suitability for packaging different products such as the common snack food, milk powder, frozen food, cooked food and the like.

Description

Technical field: [0001] The invention relates to a composite film with pearlescent effect, in particular to a preparation method of a composite film with partial pearlescent effect. Background technique: [0002] With the improvement of people's living standards, the requirements for food packaging are also increasing. Pearlescent materials have a wide range of applications in packaging products due to their high brightness and uniform dispersion. In recent years, the application of pearlescent materials in packaging has become more and more extensive. The main application form is pearlescent film, which is commonly found in the following structures: BOPP / pearlescent BOPP, pearlescent BOPP, PET / pearlescent BOPP, etc. The above materials are all pearlescent materials, that is, pearlescent patterns are prepared on the entire film. By adding pearlescent masterbatch, fine and uniform gaps are formed in the film core layer, so that the film shows the pearlescent color effect. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B41M1/10B32B37/12B32B38/04
Inventor 姜志绘陈宝生郭群良王红卫杨茹解晓霞
Owner 河北永新包装有限公司
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