Packaging bag composite material into which sucking pipette can be easily inserted
A technology of composite materials and layer materials, which is applied in the field of composite materials for packaging bags where straws are easy to insert, can solve the problems of inconvenience to consumers, difficulty in promotion and use, spillage of beverages, etc., and achieve the effect of hygienic safety, reliability and wide range of use
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[0024] figure 1 Representing the first embodiment of the present invention, it is a side sectional view of the pre-puncture area of the composite material, which is composed of two layers of materials, from the outside to the inside, a biaxially stretched polypropylene film 16 as a printing layer and a polyethylene as a sealing layer film19. A socket 12 is formed on layer 16, layer 19 acting as a sealing layer. Layer 16 and layer 19 have an adhesive layer 11 in between.
[0025] As a second embodiment of the present invention, figure 1 The side cross-sectional view of the pre-puncture area of the composite material is composed of two layers of materials, from the outside to the inside are biaxially stretched polypropylene film 16 and vacuum aluminized cast polypropylene film 19. A socket 12 is formed on layer 16, layer 19 acting as a sealing layer.
[0026] As a third embodiment of the present invention, figure 1 The side cross-sectional view of the pre-puncture area ...
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