Formation method of junction structure having peeling property
A technology of peelability and structure, applied in the field of formation of joint structure, can solve the problems of change of peelability and poor peelability, and achieve the effect of high pressure resistance, stable heat sealing strength and excellent peelability
Inactive Publication Date: 2013-12-04
SUNTOX
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The invention provides a junction structure having the characteristics of high content protection property, easy peeling during the removal of a content, easy peeling property control, high pressure resistance, and difficult tearing of a biaxial stretching polypropylene film during peeling. The formation method of the junction structure is characterized in that the thermal fusion of a biaxial stretching slice (A) containing a sealant layer (A2) and a thermoplastic resin member (2) containing a sealant layer (B2) is carried out to form the junction structure having a peeling property at the thermal fusion part. The sealant layer (A2) of the biaxial stretching slice (A) includes a polypropylene random copolymer (PPA), the sealant layer (B2) of the thermoplastic resin member (2) includes a low-melting-point polypropylene random copolymer (PPB), and a difference between the content of the propylene unit of the PPA and the content of the propylene unit of the PPB, (PPA-PPB)/PPB*100%, is in a range of -5%-5%.
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Property | Measurement | Unit |
Thickness | 0.5 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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