# US 2020/0047394 A1 · Blow-molded lamination container and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0047394 A1 - Document ID: US20200047394A1 - Status: Published application - Kind: A1 - Application number: 16/528,085 - Filed: 2019-07-31 - Published: 2020-02-13 - Earliest claimed: 2018-08-07 - Assignees: Sr Packaging Inc. Taiwan Branch (Seychelles) - Applicants: SR PACKAGING INC. TAIWAN BRANCH (Seychelles) - Inventors: Chia-Ching Chen - Web page: https://patentgrep.com/patent/US20200047394A1 ## CPC - B29C 49/22: using multilayered preforms or parisons - B65D 83/771: {for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm} - B29C 49/50: having cutting or deflashing means - B65D 1/0215: {multilayered (B65D81/3837 takes precedence)} - B65D 1/0284: {having a discontinuous contact surface, e.g. discrete feet} - B29C 49/06: Injection blow-moulding - B29C 2049/503: {being independently movable during the mould closing} - B29C 2049/5896: {Centering means therefore} - B29C 2949/0715: the preform having one end closed - B29C 2949/08: Preforms made of several individual parts, e.g. by welding or gluing parts together - B29C 2949/3094: preform having at least partially loose components, e.g. at least partially loose layers - B29L 2009/001: {the layers being loose} - B29L 2031/712: {Containers; Packaging elements or accessories, Packages (closures therefor B29L2031/56; ink or toner cartridges B29L2031/7678; squeeze tubes B29L2023/20; suitcases B29L2031/7418)} - B29L 2031/7158: {Bottles} - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract A blow-molded lamination container includes an outer layer and an inner layer. The outer layer has a bottom and an air-inletting seam. The air-inletting seam is disposed through the bottom of the outer layer, and is formed from a tapering opening by cooling shrinkage. The inner layer is disposed in the outer layer, is capable of being filled with a content and contracts with respect to the outer layer, and is not nipped within the air-inletting seam by the outer layer. A width of a widest portion of the air-inletting seam is at least twice greater than a width of a narrowest portion of the air-inletting seam. A manufacturing method for the blow-molded lamination container is also provided. ## Claims ### Claim 1 A blow-molded lamination container comprising: an outer layer having a bottom; an air-inletting seam disposed through the bottom of the outer layer, and formed from a tapering opening by cooling shrinkage; and an inner layer disposed in the outer layer, being capable of being filled with a content and contracting with respect to the outer layer, and being not nipped within the air-inletting seam by the outer layer; wherein a width of a lower side portion of the air-inletting seam is at least twice greater than a width of an upper side portion of the air-inletting seam. ### Claim 2 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the outer layer has a top located away from the bottom of the outer layer; and a flange formed near the top of the outer layer. ### Claim 3 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the inner layer has a circular discharge opening formed through a top of the inner layer. ### Claim 4 (depends on 2) The blow-molded lamination container as claimed in claim 2, wherein the inner layer has a circular discharge opening formed through a top of the inner layer. ### Claim 5 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the outer layer has two positioning protrusions disposed at two ends of the air-inletting seam; and the inner layer has two positioning grooves nipped by the two positioning protrusions. ### Claim 6 (depends on 2) The blow-molded lamination container as claimed in claim 2, wherein the outer layer has two positioning protrusions disposed at two ends of the air-inletting seam; and the inner layer has two positioning grooves nipped by the two positioning protrusions. ### Claim 7 (depends on 3) The blow-molded lamination container as claimed in claim 3, wherein the outer layer has two positioning protrusions disposed at two ends of the air-inletting seam; and the inner layer has two positioning grooves nipped by the two positioning protrusions. ### Claim 8 (depends on 4) The blow-molded lamination container as claimed in claim 4, wherein the outer layer has two positioning protrusions disposed at two ends of the air-inletting seam; and the inner layer has two positioning grooves nipped by the two positioning protrusions. ### Claim 9 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the air-inletting seam has a triangular cross section. ### Claim 10 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the air-inletting seam has a semicircular cross section. ### Claim 11 (depends on 1) The blow-molded lamination container as claimed in claim 1, wherein the air-inletting seam has a polygonal cross section. ### Claim 12 A manufacturing method of a blow-molded lamination container comprising the following steps: preparing a laminated tube comprising an outer layer and an inner layer; setting the laminated tube in a mold composed of two halves, wherein one of the two halves has a cutting tool movably mounted thereon; clamping the two halves of the mold, and making the outer layer and the inner layer of the laminated tube compressed by bottoms of the two halves and joined; inserting a nozzle and injecting air into the laminated tube from a top end thereof, and pushing the laminated tube out to match the two halves of the mold to be shaped as a blow-molded lamination container; moving the cutting tool, cutting off residues of the outer layer and the inner layer, and engraving an opening with a triangular cross section on a bottom of the outer layer; and opening the mold, taking out the blow-molded lamination container, and generating an air-inletting seam from the opening with a triangular cross section; wherein the inner layer is not nipped within the air-inletting seam by the outer layer. ### Claim 13 (depends on 12) The manufacturing method of a blow-molded lamination container as claimed in claim 12, wherein each one of the two halves of the mold has a respective mold groove formed thereon; two positioning protrusions are formed on the outer layer in the process of inserting a nozzle and injecting air into the laminated tube from a top end thereof; and two positioning grooves are formed on the inner layer and nipped by the two positioning protrusions.