摘要:
A device is provided comprised of a first layer, a second layer, and a third layer. The first layer lies on top of the second layer, and the second layer lies on top of the third layer. The device may be substantially in the shape of a sheet having a width of about six inches and a length of about eight inches. The first layer may be comprised of a backing. The second layer may be comprised of an adhesive. The third layer may be comprised of a clear material. In at least one embodiment the first layer can be removed from the device, exposing the second layer, and the second layer can then be adhered to a bag to cover an opening in the bag with a combination of the second layer and the third layer.
摘要:
A food container is disclosed that is adapted for facilitating venting of gasses to and/or from the interior of a body of the food container. The food container includes a container body, a lid and a sealing membrane. At least one skip seal or gap is formed between the sealing membrane and the container body to facilitate venting. During formation of the at least one skip seal a recess in either the lid or rim of the container reduces pressure at the skip seal to reduce or eliminate inadvertent closing of the skip seal.
摘要:
A tubular mesh enclosure (1040) formed from a mesh material having a nominal opening size of less than 0.5 inches. The mesh enclosure has opposing pair of ends (1042, 1044) with at least one end (1044) being sealed. A filling (1010) is surrounded by the tubular mesh enclosure with the enclosure defining a length and a generally non-circular longitudinal cross-section defining a major width. A ratio of the length to the width greater than approximately 40.
摘要:
A side sealing apparatus for a shrink packaging machine comprising closed loop temperature control of a heater for maintaining an optimum temperature for cutting and sealing two layers of thermoplastic film. The heater comprises a cable or cartridge heater with an internal thermocouple, and it is connected to an automatic temperature controller. The heater is mounted on the side sealer apparatus between two sets of top and bottom V-belts mounted around drive rolls and idler rolls. The V-belts provide nip pressure against the film in order to drive the film. Nip pressure is generated by nip rolls on the scrap side of the film, and by belt support plates on the package side of the film.
摘要:
A heat-shrinkable multilayer film comprises (A) a first layer, which is an outer layer, and which comprises polyolefin; (B) a second layer comprising at least one member selected from the group consisting of polyolefin, polystyrene, and polyurethane; (C) a third layer comprising at least one member selected from the group consisting of amorphous polyester and polyester having a melting point of from about 130° C. to about 260° C.; (D) a fourth layer, which is an outer layer, the fourth layer comprising at least one member selected from the group consisting of polyester, polyamide and polyurethane. The first layer preferably serves as a seal layer in a heat-shrinkable bag. The third layer provides enhanced impact strength, optics, grease-resistance, and free-shrink of the film, and renders the tape more easily orientable. The high melting polyester, polyamide, and/or polyurethane of the fourth layer permits at least two bags, having product therein, to be stacked on top of one another and sealed simultaneously, without sticking to one another, thereby doubling the output of a vacuum chamber machine. A bag and a process of making a packaged product are also disclosed.
摘要:
There is described an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food product and fed in a first direction. The sealing device has induction means interacting with the packaging material by means of a pair of first active surfaces and a pair of second active surfaces interposed between the first active surfaces in the first direction; and the second active surfaces have, in the first direction, a width greater than the width of the first active surfaces at least along most of the length of the first and second active surfaces in a second direction perpendicular to the first direction.
摘要:
A packaging bag for containing a product is provided. The bag includes an end with four bag projections that are to be folded over the product. A first pair of opposing bag projections are folded down to form generally triangular portions, and the other pair of opposing bag projections are folded onto the triangular portions and connected together in the overlap area while basically maintaining their rectangular shape and catching the corners of the first pair of bag projections. In order for the first pair of bag projections to be formed along the long side of the bag, the fold edges between adjacent bag projections run at least partially outside of the contour of the bags when folded and the angle formed between the side and base of the triangular portion when folded in is less than 45.degree..
摘要:
A method of manufacturing an ink cartridge for use in an ink jet recorder, comprising the step of providing an ink bag having a top end, and a bottom end below the top end, the top end being open and the bottom end having an ink feed port therein; moving the ink bag from a first position near a top edge thereof and positioning the ink bag in a vacuum chamber; depressurizing the vacuum chamber; charging a selected quantity of ink into the ink bag; sealing the open end of the ink bag at a second position below the first position; pressing the sealed portion of the ink bag to a selected thickness with press plates; sealing the bag in the pressed position at a third position below the second position; and cutting the ink bag between the second and third positions.
摘要:
An apparatus and method for continuously forming hermetically sealed packages of a food item. A continuous web of thermoplastic material is folded and continuously formed with a hermetic longitudinal seal. The food item is inserted between inner surfaces of the tubular web member, which is then flattened to form a thin slice. A hermetic cross-seal is continuously formed transverse to the longitudinal seal. The web can be cooled before the cross-seals are formed.
摘要:
A device is described for closing and laterally sealing plastic film wrapped bundles containing sheets or the like, by wrapping them in a thermally shrinkable plastic film, which comprises two sealing plates (25,26) suitable to be moved against lateral opposite sides of a bundle (29) for sealing them. These plates (25,26) are preferably hinged on two slides (2,3 ) suitable to be contemporaneously either approached or moved apart from each other as a function of the width of the bundle (29) to be laterally sealed. Two nozzles (31,32) are moreover provided, which form air jets against laterally protruding portions (30) of the plastic film, so that said protruding portions are easily folded by said plates (25,26). A so closed and sealed bundle is then carried inside an oven for thermally shrinking the wrapped film.