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41. 发明专利

JPH0639974A HEAT-SHRINKABLE LAMINATED FILM FOR SLEEVE PACKAGING 失效
公开(公告)号：JPH0639974A
公开(公告)日：1994-02-15
申请号：JP21717992
申请日：1992-07-23
申请人： OKURA INDUSTRIAL CO LTD
发明人： MARUYAMA KAKUSHI , TAKAO NAOKI , KONDO KAZUO
IPC分类号： B32B7/02 , B32B27/16 , B32B27/32 , B65D65/40
摘要： PURPOSE:To provide a heat-shrinkable laminated film for sleeve packaging capable of automatically sleeve-packaging at a high speed since a self-cutting property at a perforation part is good without any whitening phenomenon in shrinkage by heating. CONSTITUTION:Both surface layers consist of 20-90% gel fraction polyethylene resin, and a core layer consists of polypropylene resin. A propylene unit content of the core layer is 35-85wt.% of all constitutional resin of the film.

42. 发明专利

JPH0542967A PACKAGING METHOD 失效
公开(公告)号：JPH0542967A
公开(公告)日：1993-02-23
申请号：JP21160991
申请日：1991-07-29
申请人： OKURA INDUSTRIAL CO LTD
发明人： KAJITANI TAKAHIRO , MARUYAMA KAKUSHI
IPC分类号： B32B7/02 , B65B25/04 , B65B53/02 , B65D71/08 , B65D81/03
摘要： PURPOSE:To prevent damages to adjoining articles by a method wherein, in a package with article such as the fruit liable to damage wrapped by heat sealing and shrinking a heat-shrinkable sheet and film, the projecting ends of the four corners of the package are softened by restricting the packaging material in use. CONSTITUTION:A plurality of articles 1 such as tangerines are covered with a heat-shrinkable polypropylene film 2 having at least one heat-sealing layer constituted of polyethylene resin formed on its upper surface and the surface of the articles 1 on the flange side is covered with a heatshrinkable foam plastic sheet 3 having a non-foam layer as foam layer and heat sealing layer. The four sides of the articles 1 are heat sealed in lines along the edges 21 and 31 of these coverings and then shrunk to obtain a heat-shrunk package. To accomplish this, the sheet 3 is formed of polypropylene resin or a thermoplastic resin smaller in bending elastic modulus than the polypropylene resin and the bending elastic modulus and thickness of each layer resin are set to satisfy a specific expression.

43. 发明专利

JPH04201822A SLEEVE PACKING METHOD 失效
公开(公告)号：JPH04201822A
公开(公告)日：1992-07-22
申请号：JP33511890
申请日：1990-11-29
申请人： OKURA INDUSTRIAL CO LTD
发明人： MARUYAMA KAKUSHI , TAKAO NAOKI
IPC分类号： B65B53/02 , B65B9/06 , B65B9/067
摘要： PURPOSE:To make it easier to cut off a perforated part in a heat shrinking tunnel by a method wherein, before admitting a cylindrical heat-shrinkable film, into which an item to be packed has been inserted, into the shrinking tunnel, hot air is blown against a perforated part of said film so that said part is cut off partially. CONSTITUTION:Items to be packed 9 are inserted successively into a cylindrical film 6 having been formed by a former 2 by means of an item-to-be-packed insertion attachment 8 provided for an item-to-be-packed feed conveyor 7 in such a manner that the items are placed in the film at regular intervals, each of which being positioned between perforated parts of the film. Thereafter, the cylindrical film having therein items to be packed is continuously drawn out from the former by means of a pair of drawing conveyors 10, while hot air is blown from hot air generators 11 provided opposite sides of the cylindrical film to partially cut the perforated parts as shown by a numeral 12 and at the same time the film is brought into tight contact with shoulders of the item and fixed thereto.

44. 发明专利

JPH0334458B2 失效
公开(公告)号：JPH0334458B2
公开(公告)日：1991-05-22
申请号：JP7355484
申请日：1984-04-11
申请人： OKURA INDUSTRIAL CO LTD
发明人： KONDO KAZUO , MARUYAMA KAKUSHI
IPC分类号： B29C55/28 , B29C47/00 , B29K71/00 , B29K73/00 , B29L7/00

45. 发明专利

JPH02109868A SHRINK PACKAGE WITH HANDLE FOR HOLDING WITH HAND 失效
公开(公告)号：JPH02109868A
公开(公告)日：1990-04-23
申请号：JP17627888
申请日：1988-07-14
申请人： OKURA INDUSTRIAL CO LTD
发明人： KONDO KAZUO , MARUYAMA KAKUSHI
IPC分类号： B65D71/08
摘要： PURPOSE:To allow a handle to sufficiently withstand weight of a packaged object by a method wherein after the object is covered with a shrink film having a belt-like sheet both of whose ends have been bonded on the surface of said film, the object is tightly packaged by being heated from the outside and a space for allowing the belt-like sheet to be held is formed between the surface of the shrink film and the belt-like sheet. CONSTITUTION:Shrink rate in a lengthwise direction of a belt-like sheet 2 with both ends bonded, that is, in a direction connecting a bonded end and the other bonded end of the belt-like sheet 2 is desirably smaller than that of a shrink film 1 in a direction the same as the lengthwise direction of the belt-like sheet 2 bonded to the shrink film 1 by 20% or more. If difference in shrink rate between the belt like sheet 2 and the shrink film 1 din a direction the same as the lengthwise direction of the belt-like sheet 2 with both ends bonded to the shrink film 1 is 20% or more, since the belt-like sheet 2 does not shrink as the shrink film 1 at the time of being shrink packaged, a space for holding the belt like sheet 2 between the surface of the shrink film 1 and the belt-like sheet 2 is increased in size, thereby allowing the sheet 2 to be used easily as a handle. It is further desirable that the difference in shrink rate is 30% or more.

46. 发明专利

JPH01286834A POLYPROPYLENE LAMINATED FOAMED HEAT-SHRINKABLE FILM 失效
公开(公告)号：JPH01286834A
公开(公告)日：1989-11-17
申请号：JP11800388
申请日：1988-05-13
申请人： OKURA INDUSTRIAL CO LTD
发明人： MARUYAMA KAKUSHI , KONDO KAZUO
IPC分类号： B32B5/18 , B29C61/06 , B29K23/00 , B29K105/02 , B29K105/04 , B29L9/00 , B32B7/02 , B32B27/32
摘要： PURPOSE:To make packaging finish having high-cushioning properties favorable by making a printing aptitude and fitting aptitude of film to a label fitting machine good, by specifying foam density of an intermediate layer, a thickness of an inner and outer surface layers, the total thickness of the film, the modulus of transvrse elasticity and a dimensional shrinkage factor after immersion into a glycerin solution. CONSTITUTION:The subject film is made a three-layer constitution having non-foaming layers and a foaming layer respectively on both sides and the middle and foaming density of an intermediate layer and the total thickness of a foamed film are made respectively a range of 0.35-0.55 and 100-250mum. Then it is suitable that a thickness of an inner surface layer of the foamed sheet and that of an outer surface layer are in a sphere of 5-20mum and 2-3 times as thick as that of the inner surface layer of the side coming into contact with a bottle. When the modulus of transverse elasticity of the film falls within a sphere of 2,500-3,500kg/cm , the same is cut off with a cutter 3, transferred backward with a backward transferring device 4 and a series of processes to fit a label up to a fixed position of the bottle in practicable without hindrance. In the case of shrink packaging, it is necessary that a lateral and longitudinal shrink age factors after immersion into glycerin solution of 120 deg.C for 20 seconds are respective ly at least 50% and not exceeding 5%.

47. 发明专利

JPS636428B2 失效
公开(公告)号：JPS636428B2
公开(公告)日：1988-02-09
申请号：JP4900981
申请日：1981-03-31
申请人： OKURA INDUSTRIAL CO LTD
发明人： KONDO KAZUO , MARUYAMA KAKUSHI
IPC分类号： B65D77/30 , B65D5/44 , B65D65/26 , B65D65/32 , B65D75/68 , B65D77/32

48. 发明专利

JPS57174214A METHOD FOR REGULATING UNIFORMITY IN THICKNESS OF BIAXIALLY STRETCHED TUBULAR FILM OF SYNTHETIC RESIN 失效
公开(公告)号：JPS57174214A
公开(公告)日：1982-10-26
申请号：JP6168281
申请日：1981-04-21
申请人： OKURA INDUSTRIAL CO LTD
发明人： KONDOU KAZUO , MARUYAMA KAKUSHI
IPC分类号： B29C55/00 , B29C47/00 , B29C49/00 , B29C55/26 , B29C55/28 , B29L7/00
摘要： PURPOSE:To eliminate irregularity in thickness without requiring any special skill by a method wherein the flow rate of a gas stream flowing on the outside peripheral surface of a film is partially regulated at an inlet part of a reheating cylinder, when cooling or expanding by heating a tubular resin film which is melt extruded from an annular die. CONSTITUTION:The synthetic resin tubular film 2 being melt extruded from the annular die 1 is cooled by a cold air from a cooling ring 3 or the like. On the other hand, a gas is fed under pressure into the film 2 and the film 2 is introduced into the reheating cylinder 9 while forming the first bubble 12. The film 2 is brought into contact with a mandrel 10 while reheating the film 2 from the outside peripheral surface and is expanded to a predetermined diameter by the pressurized gas inside the film 2, thereby forming the second bubble 2. Simultaneously, a hollow ring form thickness-regulating plate 5 fitted to a lower wall 4 of the cylinder 9 is displaced in the horizontal direction by operating adjusting screws 7A-7F, and the gap 11 between the inside wall surface of the plate 5 and the mandrel 10 is partially regulated to eliminate the irregulality in the thickness of the film 2.

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