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High-performance pearlized film and preparation method thereof

A pearlescent film and high-performance technology, applied in the field of high-performance pearlescent film and its preparation, can solve the problems of decreased film strength and increased cost, and achieve the effects of reducing strength, increasing strength, and improving pearlescent effect.

Inactive Publication Date: 2018-09-21
SHANGHAI MAIGAO NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pearlescent film in the prior art generally needs to add a large amount of expensive pearlescent powder, which leads to a great increase in cost and a decrease in film strength

Method used

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  • High-performance pearlized film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) 100 parts by weight of polypropylene resin with a weight average molecular weight of 200,000, 0.1 parts by weight of zinc stearate, 0.1 parts by weight of white oil, 0.1 parts by weight of antioxidant 1010 and 20 parts by weight of the average particle diameter The superfine calcium carbonate of 20 nanometers is dried in a drier, the temperature of the drier is 110°C, and the drying time is 8 hours;

[0039] (2) Put the dried material into the mixer, stir and mix at a temperature of 80°C to form a plasticized material;

[0040] (3) Feed the stirred plastic material to the extrusion feeder, and then extrude it in the form of melt and send it to the quenching roller to cool it into a cast sheet. The temperature of the extruder is 220°C, and the melt The melting temperature is 270°C;

[0041] (4) Stretch and cool the cast sheet through a two-way stretching machine. The longitudinal stretching ratio is 3 times. The stretch ratio is 3 times, the transverse stretching p...

Embodiment 2

[0046] (1) 100 parts by weight of polypropylene resin with a weight average molecular weight of 700000, 5 parts by weight of zinc stearate, 2 parts by weight of white oil, 5 parts by weight of antioxidant 1010 and 50 parts by weight of the average particle diameter The superfine calcium carbonate of 200 nanometers is dried in a drier, the temperature of the drier is 110°C, and the drying time is 8 hours;

[0047] (2) Put the dried material into the mixer, stir and mix at a temperature of 80°C to form a plasticized material;

[0048] (3) Feed the stirred plastic material to the extrusion feeder, and then extrude it in the form of melt and send it to the quenching roller to cool it into a cast sheet. The temperature of the extruder is 220°C, and the melt The melting temperature is 270°C;

[0049](4) Stretch and cool the cast sheet through a two-way stretching machine. The longitudinal stretching ratio is 3 times. The stretch ratio is 3 times, the transverse stretching preheati...

Embodiment 3

[0054] (1) 100 parts by weight of polypropylene resin with a weight average molecular weight of 650000, 1 part by weight of zinc stearate, 0.5 parts by weight of white oil, 2 parts by weight of antioxidant 1010 and 46 parts by weight of the average particle diameter The superfine calcium carbonate of 120 nanometers is dried in a drier, the temperature of the drier is 110°C, and the drying time is 8 hours;

[0055] (2) Put the dried material into the mixer, stir and mix at a temperature of 80°C to form a plasticized material;

[0056] (3) Feed the stirred plastic material to the extrusion feeder, and then extrude it in the form of melt and send it to the quenching roller to cool it into a cast sheet. The temperature of the extruder is 220°C, and the melt The melting temperature is 270°C;

[0057] (4) Stretch and cool the cast sheet through a two-way stretching machine. The longitudinal stretching ratio is 3 times. The stretch ratio is 3 times, the transverse stretching prehea...

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PUM

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Abstract

The invention discloses a high-performance pearlized film. The pearlized film comprises, by weight, 100 parts of polypropylene resin, 0.1-5 parts of zinc stearate, 0.1-2 parts of white oil, 0.1-5 parts of antioxidant and 20-50 parts of superfine calcium carbonate. The invention further discloses a preparation method of the high-performance pearlized film. The high-performance pearlized film is high in strength, good in pearlizing performance, low in cost and quite wide in market prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer films, and more specifically, the invention relates to a high-performance pearlescent film and a preparation method thereof. Background technique [0002] Pearlescent film is made of polypropylene resin as the main raw material and biaxially stretched. Due to its pearlescent effect, it is often used in cold drink packaging such as ice cream, heat-sealed labels, sweets, biscuits, and snacks. In addition, in the past two years, pearlescent film has also been widely used in car body color change film. At present, almost every brand of color-changing film on the market has pearlescent film for consumers to choose from. At present, domestic cold drink packaging has developed by leaps and bounds, realizing the diversification of cold drink packaging forms and product functions. According to relevant reports and data, cold drink packaging accounts for 23% of flexible packaging. At present, some flexib...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L91/06C08L81/06C08L79/04C08K3/22C08K3/26C08J5/18
CPCC08J5/18C08J2323/12C08J2479/04C08J2481/06C08J2491/06C08K2003/2241C08K2003/265C08K2201/003C08K2201/011
Inventor 刘小翔
Owner SHANGHAI MAIGAO NEW MATERIAL TECH
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