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Packaging film

一种包装用、薄膜的技术，应用在包装用薄膜领域，能够解决不能同时满足防雾性、平滑性防结块性等问题

Active Publication Date: 2011-01-26
TAKEMOTO YUSHI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in these conventional packaging films, although the layer in contact with the packaging object does not destroy the original transparency, there is a problem that the anti-fogging properties, smoothness and anti-blocking properties cannot be satisfied at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]The ethylene-(1-butene) copolymer of 88 weight parts (ethylene copolymerization ratio 95%, density 0.920g / cm 3 , MFR2.1g / 10 minutes), 3.9 parts by weight of diglycerin=monolauric acid ester, 2.4 parts by weight of sodium laurylsulfonate and 5.7 parts by weight of silicon dioxide (average particle diameter 4.0m) drop into roller mixing machine, after mixing, the twin-screw extruder is further used for melting and kneading, so as to obtain the basic particles of the polyolefin resin composition. Utilize the tumble mixer to the above-mentioned ethylene-(1-butene) copolymer (ethylene copolymerization ratio 95%, density 0.920g / cm2) of 10 weight parts of this basic particle and 90 weight parts 2 , MFR2.1g / 10 minutes) to mix, supply the above-mentioned mixture to a blow molding machine (TKN-40 manufactured by Chubu Chemical Machinery Manufacturing Co. The extrusion temperature of the resinous composition was 200° C. and BUR=1.8, and blow molding was performed to obtain a singl...

Embodiment 2-27 and comparative example 1-6

[0050] The packaging films of Examples 2-27 and Comparative Examples 1-6 were produced in the same manner as the packaging film of Example 1. The content of the packaging film of each example manufactured above is shown in Table 1 together with Example 1 together.

[0051] 【Table 1】

[0052]

[0053] In Table 1,

[0054] * 1: Content rate (% by weight) of component A in the polyolefin resin composition

[0055] * 2: Content rate (% by weight) of component B in the polyolefin resin composition

[0056] * 3: Content rate (% by weight) of component C in the polyolefin resin composition

[0057] * 4: The total content ratio (% by weight) of component A, component B and component C in the polyolefin resin composition

[0058] * 5: Ratio of A component / B component (weight ratio)

[0059] * 6: Ratio of component C to 100 parts by weight of component A and component B in total (parts)

[0060] A-1: diglycerin = monolaurate (melting point 20°C)

[0061] A-2: mixture of...

Embodiment 28

[0176] The ethylene-(1-butene) copolymer (ethylene copolymerization ratio 95%, density 0.920g / cm2) of 88 weight parts 3 , MFR2.1g / 10 minutes), 3.9 parts by weight of diglycerin=monolauric acid ester, 2.4 parts by weight of sodium laurylsulfonate and 5.7 parts by weight of silicon dioxide (average particle diameter 4.0m) drop into roller mixing machine, and after mixing, the twin-screw extruder is further used for melt mixing to obtain basic particles of the polyolefin resin composition. Utilize the tumble mixer to the above-mentioned ethylene-(1-butene) copolymer (ethylene copolymerization ratio 95%, density 0.920g / cm2) of 10 weight parts of this basic particle and 90 weight parts 2 , MFR 2.1 g / 10 minutes) were mixed to prepare a polyolefin resin composition forming a layer in contact with a packaged object. In order to make the polyolefin resin composition form a layer in contact with the packaging object, and in order to make the above-mentioned ethylene-(1-butene) copolyme...

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Abstract

The invention provided a single-layered or multi-layered packaging film in which a layer to be in contact with a packaged material is formed out of a polyolefin-based resin composition, making it possible that the layer to be in contact with the packaged material has excellent anti-fogging properties, smoothness, and anti-blocking properties at the same time, without being deteriorated in transparency inherent in the composition. This packaging film is so structured that the layer to be in contact with the packaged material is formed out of the polyolefin-based resin composition comprising a polyolefin-based resin containing specified three components in a specified ratio.

Description

technical field [0001] This invention relates to films for packaging. In recent years, single-layer or multi-layer packaging films having layers made of synthetic resins or their compositions have been widely used for packaging objects such as food and pharmaceuticals, especially polyolefin resin compositions. Packaging films are widely used for layers that come into contact with packaging objects. In order to be able to clearly see the packaging object from the outside, in this packaging film, at least the layer that is in contact with the packaging object needs to have anti-fogging properties in addition to its own transparency. Moreover, with packaging automation, in order to provide protection against The applicability of packaging equipment also requires smoothness and anti-caking properties. The present invention relates to an improved packaging film which simultaneously satisfies the above requirements. Background technique [0002] At present, as the above-mention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/32B65D65/02B32B27/18B65D65/40C08J5/18C08K3/00C08K5/103C08K5/42C08L23/02
CPCB32B27/32C08L23/02C08K5/42C08K5/103B32B27/18Y10T428/259Y10T428/31928B32B27/08
Inventor 龟井利也板谷幸保
Owner TAKEMOTO YUSHI KK