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    • 4. 发明授权
    • Fluorescent particles, method for preparing the same and paper preventing forgery using the fluorescent particle
    • 荧光颗粒,其制备方法和使用荧光颗粒防止伪造的纸
    • US06663960B1
    • 2003-12-16
    • US09622864
    • 2000-08-23
    • Toru MurakamiYasuhiko AsaiTohru NakajimaYoshihiro Watanabe
    • Toru MurakamiYasuhiko AsaiTohru NakajimaYoshihiro Watanabe
    • B32B516
    • C09K11/02C09K11/025C09K11/06C09K11/662C09K11/7739C09K11/7789D21H21/30D21H21/48D21H27/32Y10T428/2982Y10T428/2991Y10T428/2998Y10T428/31993
    • Fluorescent particles strongly fluorescing upon irradiation with ultraviolet rays, as well as a process for producing the same, are provided. A water-insoluble fluorescent dyestuff and/or pigment fluorescing upon irradiation with ultraviolet rays and a powdery material including starch, cellulose, other polysaccharides and sugars are mixed and granulated. The surface of granules of the powdery material may be coated with the fluorescent dyestuff and/or pigment. In granulation or coating, a resin having reactive groups reacting with the hydroxyl groups of the powdery material is used in combination, whereby particles excellent in water resistance can be obtained. Further, the interaction between an anionic binder contained in the granules and a cationic material contained in the coating layer or between a cationic binder contained in the granules and an anionic material contained in the coating layer can be utilized to confer water resistance on the particles. By inclusion of the fluorescent particles in paper, there can be provided anti-falsification paper wherein the particles fluorescing in a specific hue can be clearly visually recognized upon irradiation with ultraviolet rays.
    • 提供了在照射紫外线时强荧光的荧光颗粒及其制备方法。 将紫外线照射时的水不溶性荧光染料和/或颜料和包括淀粉,纤维素,其它多糖和糖类在内的粉末状物质混合并造粒。 粉末材料的颗粒表面可以用荧光染料和/或颜料涂覆。 在造粒或涂布中,组合使用具有与粉末状材料的羟基反应的反应性基团的树脂,由此可以获得耐水性优异的颗粒。 此外,包含在颗粒中的阴离子粘合剂和包含在包衣层中的阳离子材料之间或包含在颗粒中的阳离子粘合剂和包含在涂层中的阴离子材料之间的相互作用可用于赋予颗粒耐水性。 通过将荧光颗粒包含在纸中,可以提供防伪纸,其中在照射紫外线时可以清楚地识别出以特定色调发荧光的颗粒。
    • 9. 发明授权
    • Oil-resistant sheet material
    • 耐油板材
    • US07588831B2
    • 2009-09-15
    • US10562826
    • 2004-08-10
    • Kousuke AkiyamaYasuhiko Asai
    • Kousuke AkiyamaYasuhiko Asai
    • B32B27/00B32B29/00
    • B65D65/42B65D85/74D21H19/14D21H19/82Y02A40/961Y02W90/11Y10T428/27Y10T428/31855Y10T428/31971
    • An oil-resistant sheet material which has low resistance to gas permeation and excellent oil resistance and is suitable especially for use as a packaging material for foods containing an edible oil. The oil-resistant sheet material is obtained by forming at least one coating layer from a material comprising a hydrophobized starch and a crosslinking agent on at least one side of a base in an amount of 0.5 to 20 g/m2. By incorporating a fatty acid and/or polyvinyl alcohol into this coating layer, oil resistance is improved. A coating layer comprising a fatty acid as the main component or a coating layer comprising polyvinyl alcohol as the main component may be formed on that coating layer. Thus, a coating layer composed of at least two layers may be formed.
    • 一种耐气体渗透性低,耐油性优异的耐油性片材,特别适用于含有食用油的食品的包装材料。 耐油性片材通过在0.5〜20g / m 2的量的至少一面上形成由包含疏水化淀粉和交联剂的材料构成的至少一层涂层而获得。 通过在该涂层中加入脂肪酸和/或聚乙烯醇,提高了耐油性。 可以在该涂层上形成以脂肪酸为主要成分的涂层或以聚乙烯醇为主要成分的涂层。 因此,可以形成由至少两层构成的涂层。