摘要:
A method of making a transparent magnetic recording layer which comprises forming a concentrated aqueous magnetic dispersion (A) of from 10 to 50 percent by weight ferromagnetic particles having a specific surface area of at least 30 m.sup.2 /gm and from 0.5 to 20 percent by weight of a dispersing agent; adding the concentrated aqueous magnetic dispersion (A) to a viscosity increasing hydrophilic polymer in water (B) such that the concentration of the hydrophilic cobinder is from 0.5 to 3 percent by weight based on the total weight of (A) and (B); diluting the resulting dispersion (A) plus (B) with water to give a dispersion (C) having a concentration of from 0.5 to 5 percent by weight of ferromagnetic particles; preparing a final dispersion by adding to the dispersion (C) from 20 to 200 parts per 100 parts of dispersion (C) of an aqueous deionized gelatin solution having a pH value from 7 to 10 and containing from 2 to 15 percent by weight of gelatin and coating the final dispersion onto a substrate to give a dry coverage of from 700 mg/m.sup.2 to 3000 mg/m.sup.2 of solids.
摘要翻译:一种透明磁记录层的制造方法,其特征在于,形成浓度为10〜50重量%的比表面积为30m 2 / g以上且0.5〜20重量%的铁磁性颗粒的浓缩水性磁性分散体(A) 的分散剂; 将浓缩的水性磁性分散体(A)加入到水(B)中的增粘亲水性聚合物中,使得亲水性助磨剂的浓度为(A)和(B)的总重量的0.5〜3重量%。 用水稀释所得分散体(A)加(B),得到浓度为铁磁颗粒重量的0.5-5%的分散体(C); 通过向分散体(C)添加20至200份/ 100份分散体(C)的分散体(C),其分散体(C)为pH值为7至10的含水去离子明胶溶液,并含有2至15重量%的明胶 并将最终分散体涂布在基材上,得到700mg / m 3至3000mg / m 2固体的干覆盖。
摘要:
Disclosed are various embodiments for generating classifications for items from normalized item attributes. Multiple attribute options are maintained for an item. Each of the attribute options is associated with a respective range of values on a normalized scale for an attribute. Multiple item classifications are generated for one of the attribute options by mapping the respective range of values for the one of the attribute options to one or more item classifications on each of multiple scales of classification for the attribute.
摘要:
A multilayer compensator includes one or more polymeric first layers and one or more polymeric second layers. The first layers comprise a polymer having an out-of-plane birefringence between −0.005 and +0.005. The second layers comprise an amorphous polymer having an out-of-plane birefringence that is either less than −0.005 or greater than +0.005. The overall in-plane retardation of the multilayer compensator is greater than 20 nm, and the out-of-plane retardation is more negative than −20 nm or more positive than +20 nm. The amorphous polymer of the second layer(s) has a glass transition temperature (Tg) such that 110° C.≦Tg≦180° C. when the Rth of the multilayer compensator is more negative than −20 nm, and 100° C.≦Tg≦160° C. when the Rth of the multilayer compensator is more positive than +20 nm.
摘要:
A negative-working imaging member can be used as a lithographic printing plate without ablation. The imaging member comprises a support and an imaging layer that includes a dispersion of at least 0.05 g/m2 of a cyanoacrylate polymer that is thermally degradable below 200° C., a photothermal conversion material that is present in an amount to provide a dry weight ratio to the cyanoacrylate polymer of from about 0.02:1 to about 0.8:1, and a hydrophilic binder to provide a dry weight ratio of a hydrophilic binder to the cyanoacrylate polymer of up to 1:1. Thermal imaging energy causes the exposed areas of the imaging layer to adhere to the support while unexposed areas can be readily washed off and/or simultaneously inked for press runs.
摘要:
A lithographic imaging member, such as a printing plate, has a support having thereon an ink-accepting melanophilic layer and an ink-rejecting siloxane surface melanophobic layer. Within the printing plate is a photothermal conversion material capable of converting irradiation, such as IR radiation, to heat in exposed regions. Also within one of the layers is a compound that upon imaging releases a moiety that facilitates degradation of the surface melanophobic layer. The released moiety can be fluoride ion or a fluoride ion-containing compound. In some imaging members, a barrier layer may be interposed between the two other layers. Such imaging members can be digitally imaged and used for printing without post-imaging processing.
摘要:
A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side a slipping layer comprising a polyvinyl-block-siloxane copolymer, the polysiloxane component comprising from about 2 to about 30 weight % of the copolymer, and the polysiloxane component having a molecular weight of at least about 3900.
摘要:
Photographic assemblages, elements, receiving elements and cover sheets are described employing a novel timing layer comprising the following recurring units: ##STR1## wherein R.sup.1 is a straight or branched chain alkyl group of from 1 to about 10 carbon atoms or aralkyl group of from about 7 to about 10 carbon atoms;R.sup.2 is a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms;R.sup.3 is a straight or branched aliphatic group having from 1 to about 20 carbon atoms or an aromatic group having from about 6 to about 20 carbon atoms, the group being substituted with at least one free carboxylic acid group, free sulfonic acid group, free phosphoric acid group or salt thereof;x is from about 1 to about 30 weight percent; andy+z is from about 99 to about 70 weight percent, the ratio of y:z ranging from about 15:85 to about 70:30.The timing layer has a high activation energy and provides improved processing temperature latitude.
摘要:
Photographic assemblages, elements, receiving elements and cover sheets are described employing a novel timing layer comprising the following recurring units: ##STR1## wherein R.sup.1 is a straight or branched chain alkyl group of from 1 to about 10 carbon atoms or aralkyl group of from about 7 to about 10 carbon atoms;R.sup.2 is a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms;R.sup.3 is a straight or branched aliphatic group having from 1 to about 20 carbon atoms or an aromatic group having from about 6 to about 20 carbon atoms, the group being substituted with at least one free carboxylic acid group, free sulfonic acid group, free phosphoric acid group or salt thereof;x is from about 1 to about 30 weight percent; andy+z is from about 99 to about 70 weight percent, the ratio of y:z ranging from about 15:85 to about 70:30.The timing layer has a high activation energy and provides improved processing temperature latitude.
摘要:
Disclosed are various embodiments for searching for items in a catalog using normalized item attributes. A range of values on a normalized scale is determined for an option for an attribute associated with a representative item. The range of values of the representative item is correlated with a first unit on a first scale of item classification. Multiple items are identified based at least in part on the option for the attribute. Each of the items is associated with a respective option for the attribute that has a respective range of values on the normalized scale that overlaps the range of values of the representative item. The respective range of values of one or more of the items is correlated with a second unit on a second scale of item classification.
摘要:
Flexographic printing plates and other relief images can be formed from a laser-ablatable element having a laser-ablatable layer that is at least 20 μm in thickness. The laser-ablatable layer includes a film-forming material that is a laser-laser-ablatable material or the film-forming material has dispersed therein a laser-ablatable material. The laser-ablatable material is a polymeric material that when heated to 300° C. at a rate of 10° C./minute, loses at least 60% of its mass to form at least one predominant low molecular weight product. The element can be imaged by ablation at an energy of at least 1 J/cm2 to provide a relief image.
摘要翻译:柔版印刷版和其它浮雕图像可以由具有至少20μm厚的激光可烧蚀层的激光可烧蚀元件形成。 激光烧蚀层包括作为激光可激光材料的成膜材料,或者成膜材料中分散有激光可烧蚀材料。 激光可烧蚀材料是一种聚合材料,当以10℃/分钟的速率加热至300℃时,其损失至少60%的质量以形成至少一种主要的低分子量产物。 该元件可以以至少1J / cm 2的能量消融成像,以提供浮雕图像。