Aseptic bag

Patent name aseptic packaging bag patent applicant Li Guangqi main applicant address 314400 Zhejiang Haining Qingyun Town Changhai Packaging & Printing Co., Ltd. inventor Li Guangqiu; Jin Hucheng; Li Mingzhe (patent) No. 200510049505.8 Date of application 2005.03.30 Certification date Auditing Announcement No. 1669883 Auditing Announcement Date 2005.09.21 Manual Disc No. D0538 Main Classification No. B65D30/08 Classification No. B65D30/08; B65D65/40; B32B27/00 Division Original Application No. Priority Abstracts The present invention discloses a sterility The packaging bag includes a bag body and a filling mouth. The filling mouth is mounted on the bag body. The bag body is made of a layered material. The layered material is an outer layer, an intermediate layer, an inner layer and a second layer from the outside to the inside. Layer modified polyethylene layer, the outer layer consists of five layers of structure, from the outside to the inside in order to modify the polyethylene layer I, adhesive resin layer, polyamide layer and modified polyethylene layer II; middle layer of poly-p-benzene The polyethylene glycol diformate modified layer; the inner layer is composed of a linear polyethylene layer I, a linear polyethylene layer II and a linear polyethylene layer III; the modified polyethylene layer is a three-layer or five-layer structure. The invention not only solves the problem of inconvenient transport of rigid containers, but also can effectively prevent the bacteria from invading the bag body and is very suitable for storing deep-processed agricultural and sideline products. Sovereignty item 1. An aseptic packaging bag comprising a bag body and a filling mouth, the filling mouth being mounted on the bag body, characterized in that the bag body is made of layered material, and the layered material is from outside to inside The outer layer, the middle layer, the inner layer and the second layer modified polyethylene layer; the outer layer is composed of a five-layer structure, from the outside to the inside are modified polyethylene layer I, adhesive resin layer, polyamide layer and modified poly Ethylene layer II, modified polyethylene layer I is modified by blending 30-70% linear polyethylene and 30-70% polyethylene. Modified polyethylene layer II is a metallocene linear polyethylene 30-70%. It is blended with 30-70% of low-density polyethylene. The metallocene linear polyethylene has a metallocene content of 2.5-15%, linear polyethylene content of 85-97.5%, and the middle layer of polyethylene terephthalate. The glycol ester modified layer has an inorganic aluminum layer vapor-deposited on the surface of the polyethylene terephthalate modified layer, and the polyethylene terephthalate modified layer is in polyethylene terephthalate. Adding 15-40% polyethylene naphthalate, 6-25% inorganic sodium material, 3-15% liquid crystal polymer and 1.5-6% additive to the glycol ester and blending The inner layer is composed of a linear polyethylene layer I, a linear polyethylene layer II and a linear polyethylene layer III, which are arranged from the outside to the inside, and the linear polyethylene layer II is a bimodal linear polyethylene, and the linear polyethylene layer III is a metallocene 30-70% of linear polyethylene and 30-70% of low density polyethylene are blended and modified, while metallocene linear polyethylene is from 1.5 to 15% of metallocene, 80 to 97.5% of linear polyethylene and smooth The agent is modified by blending 1-5%; the inner layer can also be composed of only two layers, one layer is a copolymerized modified layer of ethylene and acrylic ester derivatives, and the ethylene in the layer is 70-94%, and the acrylic ester is derivatized. 6-30%, another layer is a metallocene-modified linear polyethylene layer, wherein the linear polyethylene content is 85-97.5%, the metallocene content is 2.5-15%; the modified polyethylene layer is three layers or The five-layer structure, the three-layer structure, from the outside to the inside, is a linear polyethylene layer I, a bimodal linear polyethylene layer and a linear polyethylene layer II, and the linear polyethylene layer I is a metallocene linear polyethylene 30- 70% and 30-70% of low-density polyethylene are blended and modified, and the metallocene linear polyethylene has a metallocene content of 2.5-15. , Linear polyethylene content of 85-97.5%; linear polyethylene layer II and linear polyethylene layer I the same structure; the five-layer structure, followed by a linear polyethylene mixed layer, adhesive resin layer, polyamide layer, sticky The resin layer and the linear polyethylene mixed layer, linear polyethylene mixed layer in the linear content of 30-70%, low density polyethylene content of 30-70%. International Application International Publication Entering Country Date Patent Agency Hangzhou Qiushi Patent Office Co., Ltd. Agency Address Agent Han Jiemei