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Resin sheet roll-body packaging body

A technology of resin sheets and rolls, applied in packaging and other directions, can solve problems such as pallet skewing and bending, and achieve stable storage or transportation

Inactive Publication Date: 2017-05-10
MITSUI CHEM TOHCELLO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if figure 2 As shown in (B), during storage or transportation of the resin sheet roll body 10, the tray 22A may be skewed or bent.

Method used

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  • Resin sheet roll-body packaging body
  • Resin sheet roll-body packaging body
  • Resin sheet roll-body packaging body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] An ethylene-α-olefin copolymer was prepared in the same manner as in Synthesis Example 1 of International Publication No. 2012 / 046456, and the above-mentioned resin composition was melt-extruded into a sheet at a die temperature of 105°C using an extrusion molding machine. After being cooled and solidified by a cooling roll, a wound solar cell sealing sheet is made. The elastic modulus at 23° C. of the solar cell sealing sheet was 8 MPa.

[0107] Then, the solar cell sealing sheet (sheet thickness 500 μm) with a sheet width of 1 m was wound on a paper roll core (inner diameter 77 mm, outer diameter 85 mm) to obtain a resin sheet roll body with a roll diameter of 345 mm. At this time, each roll core protruded by 14 mm from the side part of a resin sheet. A linear low-density polyethylene (density: 0.919g / cm2) laminated with aluminum foil is rolled on the resin sheet roll body. 3 MFR: 8 g / 10 minutes), the ends of the packing sheet were fixed with polypropylene tapes so ...

Embodiment 2

[0110] A solar cell sealing sheet with a sheet width of 1 m (resin sheet of ethylene vinyl acetate copolymer (ratio of vinyl acetate constituent unit: 33% by mass, MFR : 30g / 10min, modulus of elasticity: 8MPa, sheet thickness: 500μm)), and a resin sheet roll with a roll diameter of 345mm was obtained. At this time, 14 mm of roll cores protruded from the side part of a resin sheet. Around the roll body of the resin sheet (except for the side parts in the width direction), the roll is made of linear low-density polyethylene (density: 0.919g / cm2) laminated with aluminum foil. 3 MFR: 8 g / 10 minutes) was used as a packing sheet, and the end of the packing sheet was fixed with a polypropylene tape.

[0111] A cylindrical support member (thickness of the support member: 20 mm) made of reinforced corrugated cardboard was prepared. The outer diameter of the support member was 345 mm, and a through hole with a diameter of 90 mm was provided in the center of the support member. The di...

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PUM

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Abstract

The present invention addresses the problem of providing a packaging body which can support a rolled-up resin sheet without deforming the same, and with which a contact mark is unlikely to be produced at the surface where a roll body and a support member come into contact. In order to solve the foregoing, provided is a resin sheet roll-body packaging body comprising: a roll body that includes a winding core and a resin sheet which is rolled-up onto the circumferential surface of the winding core; a support member that supports the width-direction lateral surface of the rolled-up resin sheet; and a packaging container that accommodates the roll body and the support member. The packaging body is configured so that the tensile elastic modulus of the resin sheet is 6-13 MPa at 23 DEG C, and so that formula (1) is satisfied by the outer diameter D of the rolled-up resin sheet, and the outer diameter d of a surface of the support member, such surface coming into contact with the width-direction lateral surface of the rolled-up resin sheet. Formula (1) D-d=0-10 (mm).

Description

technical field [0001] The present invention relates to a packaging body of a resin sheet roll body. Background technique [0002] The resin sheet is stored and transported in the form of a roll body wound around a roll core (see Patent Documents 1 and 2). For example, in patent document 3 etc., such as figure 1 As shown, the roll core 10b of the resin sheet roll body 10 is protruded from the width direction of the rolled resin sheet 10a, and the protruding portion of the roll core 10b is fitted into the recess 24a or the through hole of the support member 24. And support. Then, the resin sheet roll body 10 and the support member 24 are accommodated in tray 22A etc., and are transported. By supporting and transporting the resin sheet roll body 10 in this way, the vibration during transport becomes less likely to be transmitted to the resin sheet roll body 10 . [0003] However, even with the packaging method proposed in Patent Document 3, the wound resin sheet may be def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D85/672B65D77/26B65H75/10
CPCB65D77/26B65D85/672B65H75/10
Inventor 室伏贵信德弘淳大土井理惠
Owner MITSUI CHEM TOHCELLO INC