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Multiple-layer membrane for agriculture

A multi-layer film, agricultural technology, applied in the direction of layered products, synthetic resin layered products, climate change adaptation, etc., can solve the problems of insufficient weather resistance, etc., to achieve excellent weather resistance, leakage inhibition, and good adhesion will reduce the effect

Inactive Publication Date: 2014-01-29
MITSUBISHI PLASTICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even when an agricultural film is produced with the addition amount described in this application, the weather resistance under acidic conditions is still insufficient.

Method used

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  • Multiple-layer membrane for agriculture

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0208] (1) Preparation of laminated film (commonly used for anti-fogging agent kneading (加り込み) type and anti-fogging coating film coating type)

[0209] As a 3-layer blow molding device, using For the extruder, the diameter of the extruders on the outer and inner layers of the two tubes is (manufactured by PLAGIKEN Co., Ltd.), the diameter of the extruder for the middle layer is (manufactured by PLAGIKEN Co., Ltd.), the temperature of the extruder for the outer and inner layers is 180°C, the temperature of the extruder for the middle layer is 170°C, the temperature of the die head is 180°C to 190°C, the inflation ratio is 2.0 to 3.0, and the extraction speed The (drawing speed) was 3 m / min to 7 m / min, and the thickness was 0.10 mm to 0.15 mm, and a three-layer laminated film composed of the components shown in Table 1 to Table 5 was obtained. In addition, these films are used after the end of the tube is cut off when the film is spread in a shed. Therefore, the outer laye...

Embodiment 1～8、 comparative example 1～8

[0273] According to the above formulation, a 100 μm film was produced by a processing method (anti-fogging agent kneading type and anti-fogging coating film coating type). Using the film obtained here, various tests were carried out under the above conditions.

Embodiment 1、2

[0274] [Example 1, 2; Comparative Example 1, 2]

[0275] According to the above-mentioned combination, a three-layer film with a film thickness of 100 μm and a layer ratio of 1 / 3 / 1 (anti-fog coating film coating type: no ultraviolet absorber added) was produced, and the initial anti-fog coating film adhesion and pesticide resistance were tested according to the above method The adhesion of the anti-fog coating film after the resistance test, the initial anti-fog property, the anti-fog property after the pesticide resistance test, and the measurement of the physical properties after the pesticide resistance test were evaluated for each film. The results are listed in Table 1.

[0276] [Table 1] Evaluation of PO membranes containing hindered amine compounds 1

[0277]

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Abstract

This invention is to provide a multiple-layer membrane for agriculture which posses an antifogging characteristic and the sealing intensity is minimally reduced in acid environment like the acid rain and pesticide. The multiple-layer membrane is a polyolefin multiple-layer membrane provided with a coating layer which is form by anti-fogging composition on a base material. The base material at least possesses an outer layer, a medium layer and an inner layer, and the base material membrane contains polyolefin resin, and at least the medium layer contains more than one the compound A shown by the following formulation (A). The anti-fogging composition uses araldite and inorganic substance colloform collosol as base ingredients. R1 is representative of a functional group or a compound (including oligomer and polymer).

Description

【Technical field】 [0001] The present invention relates to a multilayer film for agriculture, in which various characteristics of antifogging properties and adhesion strength of an antifog coating film of the multilayer film for agriculture are improved after long-term spreading under acidic conditions typified by acid rain and pesticides decrease is less. 【Background technique】 [0002] In recent years, in order to improve the marketability and productivity of agricultural crops by semi-promoting or inhibiting cultivation, so-called greenhouse cultivation or tunnel cultivation in which useful plants are cultivated under the condition of covering with agricultural covering materials has been actively carried out. The covering material is an agricultural polyolefin resin film mainly composed of agricultural vinyl chloride film (hereinafter referred to as agricultural vinyl chloride (Nongbi)) or polyethylene, ethylene-vinyl acetate copolymer and polyolefin resin ( Hereinafter,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/18A01G9/14
CPCY02A40/25
Inventor 市村拓野
Owner MITSUBISHI PLASTICS INC
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