Heat-sealing three-dimensional bag intermediate product and application of heat-sealing three-dimensional bag intermediate product in manufacturing of heat-sealing three-dimensional bag

Abstract

The invention discloses a heat-sealing three-dimensional bag intermediate product and application thereof in manufacturing a heat-sealing three-dimensional bag. An adhered main bag body is provided with an outer-layer heat-sealing adhered surface; one of a local heat bonding area, a low-temperature heat compounding area capable of being bonded with the main bonding surface of the main bonding printing fabric at low temperature and a low-temperature heat compounding area is arranged on the outer-layer heat-sealing bonded surface; the bag body inner folding side face material comprises at least one of a bag body longitudinal inner folding side face material and a bag body inner folding bottom side face material; the heat-sealing three-dimensional bag can be manufactured by thermally bonding the outer-layer heat-sealing bonded surface of the bonded main bag body and the main bonding surface of the main bonding printing fabric, and at least one of the bonded main bag body and the main bonding printing fabric is a single non-coiled material. The problem that a common paper composite thick film cannot be printed and made into a bag in a single-piece mode when rolled is solved. The manufacturing period is remarkably shortened, particularly, the expensive plate-making cost of gravure and flexographic printing can be saved through short-plate printing bag manufacturing, and a bag maker can replace huge equipment needed for manufacturing various heat-sealing edge three-dimensional bags in a traditional method only by adopting a small amount of equipment such as a compound machine and a die-cutting machine.

Description

technical field [0001] The invention relates to packaging technology, in particular to a heat-sealed three-dimensional bag intermediate product and its application in manufacturing the heat-sealed three-dimensional bag. Background technique [0002] Most of the existing thick film heat-sealed flexible packaging bags use gravure or flexo roll printing equipment that costs about ten times more than offset printing of the same specification to print the roll material. If roll offset printing is used, it is generally impossible to arbitrarily change the repeated printing length. It can manufacture packaging bags of certain lengths; even if there are bags that meet the length requirements, it is troublesome to use a small batch bag making machine to debug. Although some short-run fast printing equipment such as sheet-fed offset printing and digital printing can produce packaging bags of different lengths, paper-plastic composite films such as thick film are cut into single sheets...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing thick-film heat-sealable flexible packaging bags use gravure or flexographic roll-to-roll printing equipment, which is about ten times more expensive than offset printing of the same specification, to print roll materials. If roll-to-roll offset printing is used, the repeated printing length cannot be changed arbitrarily. It can manufacture bags of certain lengths; even if there are bags that meet the length requirements, it is troublesome to use a small batch bag making machine to debug

Although some short-run rapid printing equipment such as sheet-fed offset printing and digital printing can manufacture packaging bags of different lengths, paper-plastic composite films such as thick films are cut into sheets and are easy to roll, which is difficult to print. Moreover, traditional The large-scale heat-sealing bag-making equipment cannot use sheet-fed offset printing to manufacture packaging bags, especially including stand-up pouches with convex and concave self-sealing buttons, and heat-sealed three-dimensional bags with eight sides. Sheet Offset Manufacturing

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