摘要:
A method for producing a primary laminate including a tabstock by feeding a seal laminate comprising bottom food contact layers including a foil layer and a top polyester layer to a laminating station wherein either the foil layer of the underside of the polyester layer has been printed; simultaneously feeding a tabstock, which is narrower than the seal laminate, to the laminating station such that the bottom of the tabstock and the top polyester layer of the seal laminate come into contact to form a primary substrate, simultaneously feeding a plastic film stock; and continuously extruding a polymeric adhesive between the top face of the primary substrate and bottom surface of the plastic film stock.
摘要:
A touch fastener loop material has a non-woven web of fibers forming both a base and a field of high-tenacity hook-engageable loops extending outward from one broad side of the base. The fibers are arranged with a particularly low density while maintaining hook-engageability and usefulness as a fastening material.
摘要:
The invention relates to a sealing disc for a container closure used for a container having a mouth delimited by a circumferential edge. The sealing disc is composed of a plurality of layers with an edge. Before the container is opened for the first time, at least one group of layers tightly closes the mouth of said container. One of the layers is a metallic layer that can be heated by induction. The other layers are non-metallic and unable to be directly heated by induction. The group of layers can be sealed, using a sealing layer, on the circumferential edge of the mouth. One of the layers is composed of a thermally insulating material. The sealing disc has at least one grip tab. The grip tab is formed from just one or more of the layers of the layer group. The surfaces of the layers that form said grip tab project beyond the edge of the metallic, induction-heatable layer of the group for the length of the surface of the grip tab. Said grip tab is formed only from the layer composed of thermally insulating material, or from said layer and one or more of the other non-metallic layers that are unable to be directly heated by induction. The grip tab is doubled over on the uppermost layer of the sealing disc.
摘要:
A check valve for down-hole drilling applications may include a housing having a vent port and a chamber within the housing. The check valve may include a displaceable member within the chamber of the housing. An expanded polytetrafluoroethylene (ePTFE) membrane may be disposed over the vent port to protect the check valve from corrosion.
摘要:
The present disclosure is concerned with forming and non-forming webs with improved puncture resistance suitable for use in semi-automatic horizontal form fill and seal (HFFS) packaging machines and a process for packaging hard food items with sharp angular surfaces using such webs in such machines. The webs have a double wall partially laminated structure. The structure is conveniently formed by adhesively laminating two component films in a face to face configuration using a pattern of adhesive which leaves a substantial portion of the two facing surfaces unlaminated. The lamination just needs to be sufficient that the two component films will hot form together when they are vacuum drawn into a die to form a cavity for packaging the food items. The webs comprise at least a first thermoplastic component film having substantial stored shrink forces and a second thermoplastic component film having no substantial stored shrink forces.
摘要:
A method of making a structured surface is disclosed. The method includes providing a thermoplastic backing with multiple rows of upstanding elements. The upstanding elements include stems with proximal ends attached to the thermoplastic backing and distal caps, and each distal cap has an overhanging portion that extends beyond the stem in a first direction. For at least some of the multiple rows, an implement is passed between two adjacent rows, wherein the implement contacts the overhanging portion of at least some of the distal caps in the two adjacent rows such that at least part of the overhanging portion is turned in a second direction, different from the first direction. A structured surface that can be prepared by the method is also provided along with a fastening laminate that includes a carrier and the structured surface and an absorbent article that includes the fastening laminate. A tool useful for carrying out the method is also provided.
摘要:
The present invention relates to laminates comprising at least one structural layer and a heat sealable layer, wherein the heat sealable layer comprises or is produced from polytrimethylene succinate, poly(trimethylene terephthalate-co-succinate), or blends thereof. This invention also relates to packages comprising the laminates, said package is heat sealable at a heat sealing temperature below 100° C. to provide a heat sealing strength of 10 N/15 mm or higher.
摘要:
This invention provides a molded fastener part having a good heat-bondability to PET resin film and being excellent in flexibility and sealability, comprising a substrate layer, a fastening rail layer comprising a polyolefin resin and having a groove portion or a rib portion, and an adhesive layer located therebetween, wherein said substrate layer is made of a polyethylene terephthalate resin composition comprising 100 parts by weight of polyethylene terephthalate, 0.1-3 parts by weight of styrene-methyl (metha) acrylate-glycidyl methacrylate copolymer, 3-20 parts by weight of softening agent, and 0.05-1.5 parts by weight of molding assistant, and said adhesive layer comprises a copolymer of ethylene and a monomer containing epoxy group, or a copolymer of ethylene, (metha) acrylate ester and a dicarboxylic anhydride monomer.
摘要:
A system and method to make stacked connector members for readily joining adjacent ends of sections of insulation tubing. Each of the stacked connector members includes a carrier member having a central opening. A layer of double-sided adhesive material is coated on each side of the carrier member, such that one side of the layer of double-sided adhesive material is able to bond to an end face of one section of insulation tubing, and the other side of the layer of double-sided adhesive material is able to bond to an end face of the second section of insulation tubing. In some embodiments, the layer of double-sided adhesive includes a scrim that acts as a reinforcing structure to keep the layer of double-sided adhesive material intact as a single body during and after application between two adjacent sections of insulation tubing.