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Translucent stretched film

A translucent, stretchable film technology, applied in applications, household appliances, layered products, etc., can solve the problems of high transparency, difficult to see text or patterns, and unavailable substitutes, etc., to achieve excellent oil resistance, Excellent printability, heat sealability, and excellent water resistance

Active Publication Date: 2018-12-21
OJI HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plastic films are highly transparent, and if they are not printed on the entire surface, it is difficult to see characters or patterns, and because the texture is uniform, it is difficult to obtain a sense of luxury or design
Therefore, there is a problem that plastic films are difficult to attract consumers' attention
[0005] In addition, in tracing paper, etc., pencil writing properties are required depending on the application, but the surface of the plastic film is too smooth, so it cannot be written with a pencil, etc.
In addition, plastic film has a glossy appearance compared to paper, so it may not be used as a substitute for paper

Method used

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  • Translucent stretched film
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0289] The pellets of Resin A1, Resin A2, and Resin B1 were dry-blended at the ratios shown in Table 1 using a mixer to prepare a resin composition for a base material layer. Separately, pellets of resin A'2 and resin D1 were dry-blended at the ratios shown in Table 1 using a mixer to prepare a resin composition for a surface layer.

[0290] The dry-blended resin composition for the base layer for forming the base layer was charged from the hopper into the single-screw screw extruder a, and the dry-blended resin composition for the surface layer for forming the surface layer was charged from the hopper into Melt it at 240°C in a single-screw screw extruder b, and laminate these melts into two layers: surface layer (layer b)-substrate layer (layer a) inside a two-layer multi-manifold die The structure is extruded in the form of two laminated resin layers. The mass ratio of the extruded resin amount of the single-screw screw extruder b to the single-screw screw extruder a is b:...

Embodiment 2

[0293] Regarding the surface layer, except that 80% by mass of resin A'2 and 20% by mass of resin D1 were used instead of the ratio of the resin components constituting the surface layer described in Example 1, the same operation as in Example 1 was carried out, and the result was obtained. Stretch film of Example 2.

Embodiment 3

[0295] Regarding the surface layer, except that 70% by mass of resin A'2 and 30% by mass of resin D1 were used instead of the proportions of the resin components constituting the surface layer described in Example 1, the same operations as in Example 1 were carried out, and the results were obtained. Stretched film of Example 3.

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Abstract

The present invention provides: a translucent stretched film having a matte appearance; and a translucent stretched film which preferably has excellent printability and heat sealability, while having,if desired, pencil writability. More specifically, the present invention relates to a translucent stretched film which comprises at least a base layer and a surface layer, and wherein: the base layercomprises one or more layers that contain, as resin components, at least a crystalline thermoplastic resin A having a melting point of 120-175 DEG C and an amorphous thermoplastic resin B; the surface layer contains, as a resin component, at least a crystalline thermoplastic resin D having a melt mass flow rate of 0.02-2 g / 10 min at 190 DEG C under a load of 2.16 kg; and the total light transmittance is 35-85%.

Description

technical field [0001] This patent application is to Japanese Patent Application No. 2016-109469 (application date: May 31, 2016), Japanese Patent Application No. 2016-109520 (application date: May 31, 2016), Japanese Patent Application No. 2017-083157 ( Filing date: April 19, 2017) and Japanese Patent Application No. 2017-083158 (filing date: April 19, 2017) claiming priority, hereby referring to the above-mentioned descriptions, all of the above-mentioned patent applications are incorporated into this specification . [0002] The present invention relates to a translucent stretched film comprising at least a base layer and a surface layer. Background technique [0003] Conventionally, translucent paper such as tracing paper, transparent cellophane, paraffin paper, and sulfuric acid paper has excellent visibility of characters or patterns printed on the surface, and the content can be confirmed, so it has been used for medical packaging paper, Food wrapping paper, cooking...

Claims

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Application Information

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IPC IPC(8): B32B27/00B29C55/14B29C67/20B32B27/32C08J9/00B29L7/00B29L9/00
CPCB29C55/023B29C55/143B32B27/08B32B27/32B32B27/325B32B2270/00B32B2307/31B32B2307/408B32B2307/414B32B2307/514B29C55/14B32B2305/55B32B2307/406B32B2323/043B32B2398/20
Inventor 森亮佑池田一雄末井匠河合昌人
Owner OJI HLDG CORP
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