Sealable valve port paper bag
A paper bag and valve port technology, applied in the field of valve port paper bags, can solve the problems of material waste, environmental pollution, nano powder material leakage, etc., and achieve the effect of ensuring sealing effect, improving efficiency and good sealing effect.
Active Publication Date: 2016-06-22
SHANGHAI AILU PACKAGE
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Problems solved by technology
[0002] At present, with the development of the market, the requirements for the packaging bags of nano-powder materials are getting higher and higher. When the nano-powder materials are filled, the valve port mechanism of the valve bag is automatically closed and the seal is not tight. If the paper bag material package is squeezed and dropped by external force during the process of transportation, the nano powder material will leak out with the gap at the valve port, which will cause material waste and environmental pollution.
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0018] like figure 1 , 2 , 3, 4, and 5, a sealable valve paper bag includes a paper bag body 1, an upper bottom 2, and a lower bottom 3; with the paper bag body 1 as a base, the upper bottom 2 and the lower bottom 3 are respectively arranged on the upper end and the lower end of the paper bag body 1; the paper bag body 1 includes paper and PE film 5; the paper is arranged outside the PE film 5, and glue 10 is arranged between the paper and the PE film 5 The paper is bonded together with the PE film 5 through the glue 10; the paper is one or more layers of paper; the PE film 5 is a high-strength barrier film; it is characterized in that: the upper bottom 2 The inner side of the valve port structure 4 is provided; the upper bottom 2 is provided with an upper bottom seal 15; the lower bottom 3 is provided with a lower bottom seal 16; the valve port struc...
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The invention discloses a sealable valve port paper bag which comprises a paper bag body, an upper bottom and a lower bottom. The sealable valve port paper bag is characterized in that the inner side of the upper bottom is provided with a valve port structure, the upper bottom is provided with an upper bottom sealing strip, the lower bottom is provided with a lower bottom sealing strip, and the valve port structure is arranged on the inner side of the upper bottom sealing strip. The inner side of the upper bottom sealing strip is provided with a hot melting adhesive layer, and the upper bottom sealing strip is connected with the valve port structure through the hot melting adhesive layer. The valve port structure that can be automatically opened can be utilized to achieve automatic opening of the paper bag, the valve port bag does not need to be opened manually, and then the time is save in a packaging production process, and the canning efficiency in the packaging process is also improved; the bottom sealing strips respectively adhere to the upper bottom and the lower bottom of the paper bag body; the bottom sealing strips are utilized to seal the paper bag, the good sealing effect is guaranteed, and materials are prevented from being leaked from an opening part of the valve port structure.
Description
technical field [0001] The invention relates to a valve port paper bag, in particular to a valve port paper bag with a sealable bottom seal, which belongs to the technical field of packaging. Background technique [0002] At present, with the development of the market, the requirements for the packaging bags of nano-powder materials are getting higher and higher. When the nano-powder materials are filled, the valve port mechanism of the valve bag is automatically closed and the seal is not tight. If the paper bag material package is squeezed or dropped by external force during the transportation process, the nano powder material will leak out through the gap at the valve port, which will cause material waste and environmental pollution. [0003] In order to change this situation, a new type of valve bag with hot melt adhesive on the bottom seal is specially developed. The hot melt adhesive on the bottom seal can be heat-sealed after heating, sealing the mouth of the valve po...
Claims
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IPC IPC(8): B65D30/24B65D33/16
Inventor 陈安康
Owner SHANGHAI AILU PACKAGE