公开(公告)号：US3901151A

公开(公告)日：1975-08-26

申请号：US42896473

申请日：1973-12-27

Applicant: XEROX CORP

Inventor： CRYSTAL RICHARD G

IPC: B41N1/00 ,  G03F7/00 ,  G03G9/09 ,  G03G13/28 ,  B41C1/10 ,  C08J5/24

CPC classification number: G03G13/286 ,  B41C2210/16 ,  B41N1/003 ,  G03G9/0926 ,  Y10S428/908 ,  Y10T428/31507 ,  Y10T428/31663 ,  Y10T428/31667 ,  Y10T428/31681 ,  Y10T428/31703 ,  Y10T428/31739 ,  Y10T428/31786 ,  Y10T428/31797

Abstract: A process for preparing a waterless lithographic printing master is provided. A suitable substrate, which is preferably ink accepting is first coated with a curable silicone which is curable at low or elevated temperature and a second different curable silicone deposited on said first silicone which can be preferentially cured at a lower temperature without curing the first silicone and which second silicone contains, in addition to its own catalyst, an amount of high temperature curing catalyst sufficient to cure the underlying silicone. The surface silicone is then preferentially cured at least on its surface to render it nontacky, but not the underlying silicone. A particulate image pattern is deposited on the surface cured silicone which pattern comprises a material which selectively inactivates the curing catalyst and combines with the catalyst to degrade the cured silicone below said image pattern at elevated temperature, the underlying silicone cured in the nonimaged areas to an elastomeric ink releasable condition, as well as the surface layer to the extent that it was not previously rendered ink releasing, and the particulate image pattern and preferably the degraded and uncured silicones removed beneath said pattern to reveal the ink accepting substrate in image configuration.

Abstract translation: 提供了一种制备无水平版印刷母版的方法。 首先涂覆可接受的油墨的合适的基材，其可在低或高温下可固化的可固化硅酮和沉积​​在所述第一硅氧烷上的第二种不同的可固化硅氧烷，其可以在较低温度下优先固化，而不固化第一硅氧烷， 除了其自身的催化剂之外，第二硅氧烷还含有足以固化下面的硅氧烷的一定量的高温固化催化剂。 然后表面硅氧烷至少在其表面上固化，使其不粘附，而不是下面的硅氧烷。 颗粒图像图案沉积在表面固化的硅树脂上，其图案包括选择性地使固化催化剂失活并与催化剂结合的材料，以在升高的温度下降解所述图像图案下的固化的硅氧烷，在非成像区域中固化的底层硅氧烷 弹性体油墨可释放状态，以及表面层到其以前未被释放的油墨的程度，并且颗粒图像图案，优选地，在所述图案下方去除了劣化和未固化的硅氧烷以在图像构造中露出受墨基板。

公开(公告)号：US3907562A

公开(公告)日：1975-09-23

申请号：US41584273

申请日：1973-11-14

Applicant: XEROX CORP

Inventor： CRYSTAL RICHARD G

IPC: B41C1/10 ,  B41M1/08 ,  G03G13/28 ,  G03G13/00

CPC classification number: G03G13/286 ,  B41C1/1066 ,  B41C2210/16 ,  B41M1/08

Abstract: A novel method of preparing a waterless lithographic master and a method of printing therefrom are provided. To prepare the printing master, a suitable substrate which can be photoconductive or non-photoconductive is imaged with a hydrophobic particulate image pattern and the image fused to the substrate. The imaged substrate is then coated with an aqueous silicone which does not wet the hydrophobic image pattern. The silicone is then heated to selectively provide ink-receptive image areas and ink-releasing non-image areas.

Abstract translation: 提供一种制备无水平版印刷母版的新方法及其印刷方法。 为了制备印刷母版，可以利用疏水性颗粒图像图案和融合到基底的图像对可以是光导或非光电导的合适的基底进行成像。 然后将成像的基底用不会疏水疏水图像图案的水性硅氧烷涂覆。 然后将硅树脂加热以选择性地提供吸墨图像区域和墨水释放非图像区域。

公开(公告)号：US3903320A

公开(公告)日：1975-09-02

申请号：US43043874

申请日：1974-01-03

Applicant: XEROX CORP

Inventor： ERHARDT PETER F ,  CRYSTAL RICHARD G

IPC: G03G8/00 ,  G03G9/087 ,  G03G13/20

CPC classification number: G03G8/00 ,  G03G9/08793

Abstract: An improved method is provided for fixing pressure-fixable toners of the type having weakly crosslinked amorphous, pressure sensitive polymers wherein the crosslink bonds are disrupted and/or broken by the application of pressure. In the presence of dielectric polar liquids or vapors of polar liquids having insulating (dielectric) properties, the crosslinking forces are substantially reduced and the pressure fixability at ambient temperature is enhanced.

Abstract translation: 提供了一种改进方法，用于固定具有弱交联的无定形压敏聚合物的类型的压力固定调色剂，其中交联键被施加压力破坏和/或破坏。 在绝缘极性液体或具有绝缘（电介质）性质的极性液体的蒸气的存在下，交联力大大降低，并且环境温度下的压力定影性得到提高。