Method of producing medium-grade coated paper for rotogravure printing
    23.
    发明授权
    Method of producing medium-grade coated paper for rotogravure printing 失效
    生产用于轮转凹版印刷的中级涂布纸的方法

    公开(公告)号:US4298652A

    公开(公告)日:1981-11-03

    申请号:US147825

    申请日:1980-05-08

    摘要: A method of producing medium-grade coated paper for rotogravure printing, which paper, when printed, has fewer missing gravure dots and reproduction of gravure dots is improved.The method comprises applying the following coating composition (A) or (B) to either surface or both surfaces of base paper, the fiber content of which comprises 10 to 100 parts, by weight, high-yield pulp(s) having a 42-mesh fiber fraction content of below 30%, and 0 to 90 parts, by weight, chemical pulp(s): The coating composition (A) comprises pigments containing natural ground calcium carbonate with a specific surface area of 1.5 to 2.5 m.sup.2 /g in a proportion of 5 to (95S-137.5)% by weight ("S" represents a specific surface area (m.sup.2 /g) of natural ground calcium carbonate.), and adhesive of either alkali-sensitive synthetic resin emulsion or a mixture of alkali-nonsensitive synthetic resin emulsion and viscosity increasing agent(s). The coating composition (B) comprises pigments containing natural ground calcium carbonate with a specific surface area of 2.5 to 5 m.sup.2 /g in a proportion of 5 to 100% by weight, and adhesive of either alkali-sensitive synthetic resin emulsion or a mixture of alkali-nonsensitive synthetic resin emulsion and viscosity increasing agent(s).

    摘要翻译: 一种生产用于轮转凹版印刷的中等级涂布纸的方法,其在印刷时具有较少的凹痕凹痕点和凹印点的再现性得到改善。 该方法包括将以下涂料组合物(A)或(B)施用到原纸的任一表面或两个表面上,其中纤维含量为10-100重量份,具有42- 网眼纤维组分含量低于30%,和0至90重量份的化学纸浆:涂料组合物(A)包含含有比表面积为1.5至2.5m 2 / g的天然研磨碳酸钙的颜料, 5〜(95S-137.5)重量%的比例(“S”表示天然磨碎碳酸钙的比表面积(m2 / g)),以及碱敏感合成树脂乳液或碱的混合物的粘合剂 - 不敏感的合成树脂乳液和增粘剂。 涂料组合物(B)包含比例为5〜100重量%的比表面积为2.5〜5m 2 / g的天然研磨碳酸钙的颜料,以及碱敏感性合成树脂乳液或 碱非敏感合成树脂乳液和增粘剂。

    Water-soluble polyester resin electrographic coatings
    25.
    发明授权
    Water-soluble polyester resin electrographic coatings 失效
    水溶性聚酯树脂电影涂料

    公开(公告)号:US3922448A

    公开(公告)日:1975-11-25

    申请号:US51388874

    申请日:1974-10-10

    申请人: ICI AMERICA INC

    摘要: D R A W I N G
    Dielectric resins which are soluble in water are disclosed. The resins comprise amine salts of polyester resins, which resins are prepared by reacting a dicarboxylic acid with a polyol blend comprising a first polyol having the following general formula;:

    WHEREIN R is an alkylidene group containing from 1 to 4 carbon atoms, a cycloalkylidene group containing 5 or 6 carbon atoms, oxygen, sulfur, or a radical having one of the following formulas:

    WHEREIN R, c, X, R'', and n are as defined above and a and b are integers each of which is equal to at least 1 and the sum of which is equal to from about 9 to about 16. These resins have been found to be particularly useful in the preparation of electrographic and electrophotographic recording elements.

    c is 0 or 1; X is halogen or an alkyl radical containing from 1 to 3 carbon atoms; N IS AN INTEGER EQUAL TO FROM 0 TO 4; R'' is an alkylene group containing from 2 to 4 carbon atoms or the radical CH2CH phi ; and A AND B ARE INTEGERS EACH OF WHICH IS EQUAL TO AT LEAST 1 AND THE SUM OF WHICH IS EQUAL TO ABOUT 2 AND A SECOND POLYOL HAVING THE FOLLOWING GENERAL FORMULA:

    摘要翻译: 公开了可溶于水的介电树脂。 树脂包括聚酯树脂的胺盐,该树脂通过使二羧酸与多元醇共混物反应制备,所述多元醇共混物包含具有以下通式的第一多元醇:

    Heat sealed package
    26.
    发明授权
    Heat sealed package 失效
    热封包装

    公开(公告)号:US3903335A

    公开(公告)日:1975-09-02

    申请号:US35509273

    申请日:1973-04-27

    摘要: The invention relates to a package for a sterilised disposable article, the package having opposing base materials bonded together along marginal portions by a heat sealed adhesive and peelable apart to open the package. One of the base materials is paper which has been neutrally sized to prevent absorption of the adhesive. The outer surface of the paper is preferably machine glazed for porosity and pore size control. The adhesive may be applied all over the unglazed surface of the paper but in a discontinuous form to permit passage of a sterilising gas into the sealed package.

    摘要翻译: 本发明涉及一种用于灭菌的一次性物品的包装,该包装具有相对的基材,沿着边缘部分通过热密封粘合剂粘合在一起,并可剥离以打开包装。 其中一种基材是中性尺寸以防止粘合剂吸收的纸。 纸张的外表面优选机器玻璃以用于孔隙率和孔径控制。 粘合剂可以遍布纸的无釉面,但以不连续的形式施加,以允许消毒气体进入密封包装。

    Pigment for pressure sensitive record material
    28.
    发明授权
    Pigment for pressure sensitive record material 失效
    压力敏感记录材料

    公开(公告)号:US3723174A

    公开(公告)日:1973-03-27

    申请号:US3723174D

    申请日:1971-01-06

    发明人: SWANSON D MILLER B

    IPC分类号: D21H19/40 D21H1/28

    摘要: This application is directed to the preparation of receiving sheets for printing with transferable colorless, color-forming dye material in which the sensitive pigment that converts the colorless, color-forming dye to colored form is a hydrated aluminum silicate obtained by the hydrothermal treatment of dehydrated kaolin clay. The application discloses the discovery that a high surface area, partially hydrated metakaolin pigment that is capable of producing an intense nonfading printed image may be obtained by terminating the hydration of the dehydrated clay prior to the time when the resulting hydrated aluminum silicate would possess the maximum surface area that could be obtained by the hydrothermal treatment.

    摘要翻译: 本申请涉及用可转印的无色成色染料进行印刷的接收片的制备,其中将无色成色染料转变成着色形式的敏感颜料是通过水热处理脱水的 高岭土。 该申请公开了这样的发现:可以在所得到的水合硅酸铝将具有最大值之前终止脱水粘土的水合而获得能够产生强烈非衰退印刷图像的高表面积的部分水合偏高岭土颜料 可通过水热处理获得的表面积。