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A soft color breathable film

A gas-permeable film and color technology, applied in the field of plastic film production, can solve the problems of poor processability and film-forming properties, rising production costs, low impact strength, etc., to achieve excellent film-forming properties, improve flexibility, and high elongation at break rate effect

Active Publication Date: 2019-10-22
FUJIAN HENGAN HYGIENE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to aim at the lightening and inhomogeneous color existing in the production and stretching process of the existing multi-layer composite color gas-permeable film, and in order to achieve a certain degree of vividness of the color, it is necessary to add a large amount of color masterbatch, Not only does it cause a sharp rise in production costs, but it also causes technical problems such as a sharp drop in air permeability, and because of the addition of a large amount of nano-micron inorganic fillers (30%-60% by mass) to the existing breathable film, the composition of the breathable film has Poor processability and film-forming properties, while the tensile strength of breathable film products 、 Low impact strength, poor transparency and other defects, providing a soft color breathable film composition

Method used

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  • A soft color breathable film
  • A soft color breathable film
  • A soft color breathable film

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Experimental program
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Effect test

Embodiment 1

[0053] The soft colored air-permeable film of this embodiment comprises a first air-permeable film layer, a third air-permeable film layer and a second air-permeable film layer between the first air-permeable film layer and the third air-permeable film layer. Layer co-extruded compound.

[0054] Both the first breathable film layer and the third breathable film layer in this embodiment are composed of color masterbatch, PE resin and anhydrous sodium sulfate powder filling masterbatch, and the color masterbatch is pink, wherein:

[0055] The weight part raw material composition of the first air-permeable film layer is as follows:

[0056] 5 parts of color masterbatch, 40 parts of PE resin, 20 parts of anhydrous sodium sulfate filler masterbatch.

[0057] The raw materials in parts by weight of the third air-permeable film layer are composed as follows:

[0058] 5 parts of color masterbatch, 40 parts of PE resin, 20 parts of anhydrous sodium sulfate filler masterbatch.

[005...

Embodiment 2

[0062] The soft colored air-permeable film of this embodiment comprises a first air-permeable film layer, a third air-permeable film layer and a second air-permeable film layer between the first air-permeable film layer and the third air-permeable film layer. Layer co-extruded compound.

[0063] Both the first breathable film layer and the third breathable film layer in this embodiment are composed of color masterbatch, PE resin and anhydrous sodium sulfate powder filling masterbatch, and the color masterbatch is blue, wherein:

[0064] The weight part raw material composition of the first air-permeable film layer is as follows:

[0065] 20 parts of color masterbatch, 75 parts of PE resin, 40 parts of anhydrous sodium sulfate filler masterbatch.

[0066] The raw materials in parts by weight of the third air-permeable film layer are composed as follows:

[0067] 20 parts of color masterbatch, 75 parts of PE resin, 40 parts of anhydrous sodium sulfate filler masterbatch.

[0...

Embodiment 3

[0071] The soft colored air-permeable film of this embodiment comprises a first air-permeable film layer, a third air-permeable film layer and a second air-permeable film layer between the first air-permeable film layer and the third air-permeable film layer. Layer co-extruded compound.

[0072] Both the first breathable film layer and the third breathable film layer in this embodiment are composed of color masterbatch, PE resin and anhydrous sodium sulfate powder filling masterbatch, and the color masterbatch is purple, wherein:

[0073] The weight part raw material composition of the first air-permeable film layer is as follows:

[0074] 10 parts of color masterbatch, 50 parts of PE resin, 30 parts of anhydrous sodium sulfate filler masterbatch.

[0075]The raw materials in parts by weight of the third air-permeable film layer are composed as follows:

[0076] 10 parts of color masterbatch, 50 parts of PE resin, 30 parts of anhydrous sodium sulfate filler masterbatch.

[...

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Abstract

The invention relates to a soft color gas permeable film, which is formed by carrying out co-extrusion compounding on three layer of a first gas permeable film layer, a second gas permeable film layerand a third gas permeable film layer, wherein the first gas permeable film layer and the third gas permeable film layer are respectively prepared from the following raw materials by weight: 5-20 parts of color masterbatch, 40-75 parts of a polyolefin resin, and 20-40 parts of anhydrous sodium sulfate filling masterbatch, the second gas permeable film layer comprises 40-60 parts of a polyolefin resin, 40-60 parts of anhydrous sodium sulfate filling masterbatch, and 1-10 parts of a block polymer, and the conjugated olefin is one selected from butadiene, isoprene and butadiene derived conjugateddiolefin. According to the present invention, the color of the color gas permeable film product cannot be affected in the production stretching pore-forming process, the chroma is high, and the toughness, the tensile strength, the elongation at break and the softness of the gas permeable film product are further increased.

Description

technical field [0001] The invention relates to the technical field of plastic film production, in particular to a soft colored breathable film and a preparation method thereof. Background technique [0002] Conventional plastic films are airtight, but it has been found that plastic films modified by unidirectional or bidirectional stretching of ultrafine inorganic powders form countless interconnected micropores, which have good air permeability to air and water vapor. However, due to the surface tension of the liquid, the micropores have barrier properties to the liquid. This kind of film is called a waterproof and breathable microporous film, or breathable film for short. It can be seen that the breathable film is a polymer film filled with a certain number of inorganic particle fillers. When stretched, a hole with a controllable size (about 10 per square meter) is formed around the inorganic filler. 10 Micropores with a pore size of 0.1-5 μm), which allow the passage of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/20B32B27/30B32B27/32B29C41/26B29C55/02B29C71/04
Inventor 翁文伟祝二斌吴晓彪王伟罗梅芳
Owner FUJIAN HENGAN HYGIENE MATERIAL
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