Wrapping materials for photographic materials
    1.
    发明授权
    Wrapping materials for photographic materials 失效
    包装照相材料

    公开(公告)号:US4584234A

    公开(公告)日:1986-04-22

    申请号:US631063

    申请日:1984-07-16

    摘要: Wrapping materials for photographic materials comprising laminated layers of a paper support and at least one thermoplastic resin layer superposed on at least one surface of said paper support; said thermoplastic resin layer comprises a blended resin of (a) a high-density polyethylene having a density of 0.950 g/cm.sup.3 or more and a melt index of 10-40 and (b) a low-density polyethylene having a density of 0.930 g/cm.sup.3 or less and a melt index of 1-40, the weight ratio of (b)/(a) being 70/30-5/95, preferably 70/30-20/80, more preferably 60/40-40/60.At least one layer of said wrapping materials optionally comprises light-shielding substance in an amount of 1.0-30 g/m.sup.2.

    摘要翻译: 包括用于照相材料的材料,其包括叠层在所述纸支架的至少一个表面上的纸支撑体和至少一个热塑性树脂层的层压层; 所述热塑性树脂层包含(a)密度为0.950g / cm 3或更高,熔体指数为10-40的高密度聚乙烯和(b)密度为0.930g的低密度聚乙烯的共混树脂 (b)/(a)的重量比为70 / 30-5 / 95,优选为70/30〜20/80,更优选为60/40〜40 / 60。 至少一层所述包裹材料任选地包括1.0-30g / m 2的遮光物质。

    Packaging material for photographic photosensitive materials and
light-shielding bag formed thereof
    3.
    发明授权
    Packaging material for photographic photosensitive materials and light-shielding bag formed thereof 失效
    用于照相感光材料的包装材料和由其形成的遮光袋

    公开(公告)号:US5492741A

    公开(公告)日:1996-02-20

    申请号:US78032

    申请日:1993-06-18

    摘要: A packaging material for photographic photosensitive materials consisting essentially of a cushioning sheet having a density of less than 0.5 g/cm.sup.3, a wear-resistant heat-resistant flexible sheet having a Young's modulus of not less than 50 kg/mm.sup.2 provided on one side of the cushioning sheet, and a wear-resistant flexible sheet having a Young's modulus of not less than 50 kg/mm.sup.2 provided on the other side of the cushioning sheet, the outer most layer provided on said the other side having heat sealability, and the packaging material having complete light-shielding ability as a whole, and a light-shielding bag for photographic photosensitive materials made by fusion to join the layers having heat sealability in the above packaging material. The packaging material for photographic photosensitive materials can be heat-sealed entirely and can continuously be made into a bag automatically by a simple general purpose heat sealer, such as a heat sealing bar or a heat sealing belt, while retaining its physical strength and at a high productivity.

    摘要翻译: 一种用于照相感光材料的包装材料,其基本上由密度小于0.5g / cm 3的缓冲片构成,其一侧的杨氏模量不小于50kg / mm2的耐磨耐热柔性片 缓冲片和设置在缓冲片另一侧的杨氏模量不小于50kg / mm2的耐磨柔性片,具有热封性的另一侧上设置的最外层,以及包装 作为整体具有完全的光屏蔽能力的材料,以及用于通过熔融制成的照相感光材料的遮光袋,以将在上述包装材料中具有热封性的层结合在一起。 用于照相感光材料的包装材料可以完全热封,并且可以通过简单的通用热封机例如热封条或热封带自动连续地制成袋子,同时保持其物理强度 生产力高。

    Process for producing container for photographic film
    4.
    发明授权
    Process for producing container for photographic film 失效
    摄影胶片容器生产工艺

    公开(公告)号:US5460768A

    公开(公告)日:1995-10-24

    申请号:US147550

    申请日:1993-11-05

    摘要: A process for producing a container is disclosed including molding the container using an injection molding machine with a multicavity mold having not less than 12 cavities by charging a hot runner thermoplastic resin having a melt flow rate of 5 to 80 g/10 minutes to the multicavity mold, wherein not less than 70% of the total injected resin amount at each shot is injected at an injection speed which is adjusted at 150 to 270 mm/sec., and the remaining resin at each shot is injected at a final injection speed which is adjusted at 3 to 90 mm/sec. By employing the process, molding troubles such as burrs, stringiness, short shot and weld lines do not occur, and the container can be molded continuously for a long period under unmanned conditions without screening inspection.

    摘要翻译: 公开了一种用于制造容器的方法,包括使用具有不少于12个腔体的多腔模具的注射成型机对容器进行成型,所述注塑机具有熔体流动速率为5至80g / 10分钟的热流道热塑性树脂至多腔 模具,其中每次喷射的总注入树脂量的不少于70%以注射速度被注入到150-270mm / sec的喷射速度,并且以最终喷射速度喷射每次喷射的剩余树脂, 调整为3〜90mm / sec。 通过采用该方法,不会发生毛刺,拉丝,短路,熔接线等成型等问题,能够在无间隔的条件下长时间连续成型,不进行筛查。

    Resin composition for a core for web material
    5.
    发明授权
    Resin composition for a core for web material 失效
    用于纤维网材料的纤维的树脂组合物

    公开(公告)号:US5414032A

    公开(公告)日:1995-05-09

    申请号:US952148

    申请日:1992-09-28

    申请人: Mutsuo Akao

    发明人: Mutsuo Akao

    摘要: A resin composition for forming a core for web material comprising 70 to 30 wt. % of polypropylene resin having a melt index of 10 to 60 g/10 minutes, a bending elastic modulus of more than 8,000 kg/cm.sup.2, an Izod impact strength of more than 2 kg.cm/cm and a Rockwell hardness of more than 70 R, 30 to 70 wt. % of linear low density polyethylene resin having a melt index of 3 to 50 g/10 minutes, a density of 0.910 to 0.935 g/cm.sup.3, an Olsen rigidity of more than 1,500 kg/cm.sup.2 and a Shore hardness of more than 40 D, more than 0.01 wt. % of a lubricant and more than 0.01 wt. % of an antioxidant.The resin composition is a light weight and excellent in injection moldability, appearance, dropping strength, solvent resistance, transparency, processibility, wear resistance, dimensional accuracy, and little molding troubles such as sink marks, resin remaining at gate, stringiness, weld lines, twist and deformation, add nevertheless, it has a flexibility.

    摘要翻译: 一种用于形成网状材料芯的树脂组合物,其包含70〜30重量% 熔体指数为10〜60g / 10分钟,弯曲弹性模量大于8,000kg / cm 2,艾佐德冲击强度大于2kg·cm / cm,洛氏硬度大于70的聚丙烯树脂的% R,30〜70wt。 熔体指数为3〜50g / 10分钟,密度为0.910〜0.935g / cm3,奥氏硬度大于1500kg / cm 2,肖氏硬度大于40D的线性低密度聚乙烯树脂的% 大于0.01重量% %的润滑剂和大于0.01重量% %的抗氧化剂。 该树脂组合物重量轻,注模成型性,外观,滴加强度,耐溶剂性,透明性,加工性,耐磨性,尺寸精度以及凹痕,残留在浇口的树脂, 扭曲和变形,然而,它有一个灵活性。

    Container for light-sensitive strip materials having improved light
sealing means
    6.
    发明授权
    Container for light-sensitive strip materials having improved light sealing means 失效
    用于具有改进的光密封装置的感光带材的容器

    公开(公告)号:US5275283A

    公开(公告)日:1994-01-04

    申请号:US579281

    申请日:1990-09-06

    申请人: Mutsuo Akao

    发明人: Mutsuo Akao

    摘要: In a container for a roll of a light-sensitive strip material having a core on which the light-sensitive strip material is coiled to form a roll, an opening for drawing out the light-sensitive strip material and a teremp cloth provided on the above opening for shielding from light, wherein a filling layer formed of polyolefin copolymer resin usable as the adhesive layer for fixing the teremp cloth on the container body is provided at the ground fabric of the teremp cloth, and/or a multilayer coextruded film is laminated under the ground fabric of the teremp cloth, and the multilayer coextruded film has a tensile strength of more than 500 g/15 mm width and comprises an adhesive layer of an ethylene copolymer resin having a comonomer content of 5 to 36 % for fixing said teremp cloth on the container body and a thermoplastic resin base layer having a melting point of higher than the ethylene copolymer resin adhesive layer by 10.degree. C. or more and a Young's modulus of more than 15 kg/mm.sup.2.In this container, the filling material does not so deeply permeate into pile yarns, even though the ground fabric is not so dense. Adhesion of pile yarn dust hardly occurs, and troubles in exposure and development caused by the pile yarn dust are solved. By incorporating the multilayer coextruded film, the thickness of the adhesive layer for fixing teremp cloth on the container body is made uniform and various problems caused by non-uniformity in the thickness of the adhesive layer are solved.

    摘要翻译: 在用于卷绕光敏条材料的卷的容器中,其中感光条材料卷绕在其上以形成辊,用于拉出感光带材的开口和设置在上述的感光条材料 用于屏蔽光的开口,其中由聚烯烃共聚树脂形成的填充层可用作用于将卷烟布固定在容器主体上的粘合剂层,并且在多层共挤出的薄膜上层叠多层共挤塑膜 涤纶布的底布和多层共挤出膜的拉伸强度大于500g / 15mm宽,并且包含共聚单体含量为5-36%的乙烯共聚物树脂的粘合层,用于固定所述特布布 在容器体上的熔点比乙烯共聚物树脂粘合剂层高10℃以上的热塑性树脂基层和大于15kg / m 2的杨氏模量 m2。 在该容器中,填充材料不会很深地渗透到绒头纱中,即使底布不那么密集。 绒毛丝尘的附着力几乎不发生,解决了毛绒毛尘引起的曝光和发展的麻烦。 通过并入多层共挤出膜,将用于将特布布固定在容器主体上的粘合剂层的厚度均匀,解决了粘合剂层的厚度不均匀所引起的各种问题。

    Resin composition for articles molded by injection molding for
photographic photosensitive materials
    7.
    发明授权
    Resin composition for articles molded by injection molding for photographic photosensitive materials 失效
    用于照相感光材料的注射成型模制品的树脂组合物

    公开(公告)号:US5225466A

    公开(公告)日:1993-07-06

    申请号:US163313

    申请日:1988-03-02

    申请人: Mutsuo Akao

    发明人: Mutsuo Akao

    摘要: Resin compositions for use in molding articles by injection molding comprise 50 to 90 wt. % of polypropylene resin, 9 to 48.5 wt. % of linear low density polyethylene resin, 0.05 to 15 wt. % of light-shielding material, 0.05 to 40 wt. % of reinforcing material, 0.05 to 6 wt. % of lubricant, and oxidation inhibitor present in an amount of less than 0.5 wt. %. These resin compositions display very little mold shrinkage and have excellent size accuracy. They also have outstanding rigidity, physical strength, heat resistance, wear resistance and slipping characteristics. They are readily molded by injection molding, and are relatively inexpensive. Articles molded from the resin compositions according to the invention are well adapted for use as photographic photosensitive materials.

    摘要翻译: 用于通过注塑成型制品的树脂组合物包含50至90wt。 %的聚丙烯树脂,9〜48.5wt。 线性低密度聚乙烯树脂的%,0.05〜15重量% %的遮光材料,0.05〜40wt。 %的增强材料,0.05〜6wt。 %的润滑剂和氧化抑制剂的存在量小于0.5wt。 %。 这些树脂组合物显示出非常小的模具收缩率并且具有优异的尺寸精度。 它们还具有突出的刚度,物理强度,耐热性,耐磨性和滑动特性。 它们容易通过注塑成型,并且相对便宜。 由根据本发明的树脂组合物模制的制品很适合用作照相感光材料。

    Packaging material for photosensitive materials
    8.
    发明授权
    Packaging material for photosensitive materials 失效
    感光材料的包装材料

    公开(公告)号:US5026594A

    公开(公告)日:1991-06-25

    申请号:US311974

    申请日:1989-02-17

    申请人: Mutsuo Akao

    发明人: Mutsuo Akao

    IPC分类号: B32B27/32

    摘要: Two packaging materials for photosensitive materials characterized by utilizing linear low density polyethylene (L-LDPE) resin having a specific character.One packaging material is a thick coextruded multilayer film comprising an L-DLPE resin film layer mainly composed of an L-LDPE resin specified by the density and the melt index (MI) and a polyethylene resin film layer blended with a medium or high density polyethylene resin having a high MFR, Melt fracture and blocking do not occur, and the film is excellent in flexibility, in spite of being a thick film.The other packaging material is a single layer film of a light-shielding L-LDPE resin film layer characterized by the combination of two kinds of L-LDPE resin. The packaging material is excellent in all physical strength, particularly tear strength and impact puncture strength, antiblocking property, antistatic properties, heat sealing properties and bag-making ability. The generations of lumps and fish eyes are rare, and the film moldabily is excellent.

    摘要翻译: 两种用于感光材料的包装材料,其特征在于使用具有特定特征的线性低密度聚乙烯(L-LDPE)树脂。 一种包装材料是包括L-DLPE树脂膜层的厚的共挤出多层膜,其主要由密度和熔体指数(MI)所规定的L-LDPE树脂和聚乙烯树脂膜层与中高密度聚乙烯 不会发生具有高MFR,熔体断裂和粘连的树脂,并且尽管是厚膜,但是该膜具有优异的柔韧性。 另一种包装材料是以两种L-LDPE树脂的组合为特征的遮光性L-LDPE树脂膜层的单层膜。 包装材料具有优异的所有体力,特别是撕裂强度和冲击穿刺强度,防粘连性,抗静电性,热封性和制袋能力。 肉眼和鱼眼的世代很少见到,而且这种胶片很好。

    Core for web material
    9.
    发明授权
    Core for web material 失效
    网络材料的核心

    公开(公告)号:US4989802A

    公开(公告)日:1991-02-05

    申请号:US268372

    申请日:1988-11-07

    摘要: A core that is adapted to receive web material such as a wound film roll includes inner and outer coaxial cylinders joined together by a ring plate that extends perpendicular to the longitudinal axes of the inner and outer cylinders. A plurality of radially disposed ribs are positioned between and connected to the inner and outer cylinders. At least one projection is provided on the core at one of various places such as the inner surface of the outer cylinder or the outer surface of the inner cylinder. The projection increases frictional resistance between the mold core and the molded core, thereby ensuring the mold core will be ejected with the core from the mold cavity. The core is manufactured from a resin composition comprising 70 to 30 wt. % of polypropylene resin having a melt index of 10 to 60 g/10 minutes, a bending elastic modulus of more than 8,000 kg/cm.sup.2, an Izod impact strength of more than 2 kg.cm/cm and a Rockwell hardness of more than 70 R, 30 to 70 wt. % of linear low density polyethylene resin having a melt index of 3 to 50 g/10 minutes, a density of 0.910 to 0.935 g/cm.sup.3, an Olsen rigidity of more than 1,500 kg/cm.sup.2 and a Shore hardness of more than 40 D, more than 0.01 wt. % of a lubricant and more than 0.01 wt. % of an antioxidant.

    摘要翻译: 适于接收诸如卷绕膜卷筒纸材料的芯包括通过垂直于内筒和外筒的纵向轴线延伸的环板连接在一起的内外轴和外同轴筒。 多个径向设置的肋定位在内筒和外筒之间并连接到内筒和外筒之间。 在诸如外筒的内表面或内筒的外表面的各种位置之一处,在芯上设置至少一个突起。 该突起增加了模芯和模制芯之间的摩擦阻力,从而确保模芯将与芯从模腔中排出。 芯由由70〜30wt。%的树脂组合物制成。 熔体指数为10〜60g / 10分钟,弯曲弹性模量大于8,000kg / cm 2,艾佐德冲击强度大于2kg·cm / cm,洛氏硬度大于70的聚丙烯树脂的% R,30〜70wt。 熔体指数为3〜50g / 10分钟,密度为0.910〜0.935g / cm3,奥氏硬度大于1500kg / cm 2,肖氏硬度大于40D的线性低密度聚乙烯树脂的% 大于0.01重量% %的润滑剂和大于0.01重量% %的抗氧化剂。

    Sheet film package and buffer sheet member
    10.
    发明授权
    Sheet film package and buffer sheet member 失效
    薄膜包装和缓冲片组件

    公开(公告)号:US4915229A

    公开(公告)日:1990-04-10

    申请号:US149246

    申请日:1988-01-27

    IPC分类号: G03B42/04 G03C3/00

    CPC分类号: G03B42/045 G03C3/00

    摘要: A sheet film package comprises a casing, a stack of sheet films stored in said casing, and a protective board disposed in said for protecting said sheet films. The protective board has a holder portion integrally joined to one side edge of an upper panel and/or a lower panel thereof for preventing the sheet films from being displaced in a direction transverse to the direction in which the sheet films wil be fed out. The sheet film package also includes a buffer sheet member disposed on the lower panel of the protective board for placing the sheet films on the buffer sheet member. The buffer sheet member has at least one opening such as a hole or a slit for leaking suction air in each of two symmetrical areas of the buffer sheet member, one of which will be contacted by a suction cup of a film delivery mechanism disposed in a device in which the sheet film package can be loaded. The buffer sheet member has a foamed sheet layer made of thermoplastic resin.