公开(公告)号：WO1990008595A1

公开(公告)日：1990-08-09

申请号：PCT/NL1990000014

申请日：1990-02-05

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  HOCHMAN, Haim ,  YACOUB, Naseem

IPC: B02C15/00

CPC classification number: B01F7/00841 ,  B01F2005/0002 ,  B02C17/166

Abstract: Apparatus for dispersion of solids in liquids including two relatively movable elements arranged so as to define a dispersing volume therebetween, a multiplicity of separate generally cylindrical dispersing elements disposed within the dispersing volume, and apparatus for supplying a solid suspended in a liquid to the dispersing volume for dispersing and for removing a solid dispersed in a liquid from the dispersed volume after dispersing, wherein the relatively movable elements are separated at the dispersing volume by a separation distance which is slightly greater than the minimum dimension of the dispersing elements.

公开(公告)号：WO1990002977A2

公开(公告)日：1990-03-22

申请号：PCT/NL1989000066

申请日：1989-09-07

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  YACOUB, Naseem ,  PINHAS, Hanna

IPC: G03G15/20

CPC classification number: G03G13/20 ,  G03G15/2053 ,  G03G15/2064

Abstract: Apparatus for fusing a thermoplastic image onto a substrate comprising a fuser element comprising a thin fusing member and apparatus for tensioning the thin fusing member.

Abstract translation: 用于将热塑性图像熔合到基底上的装置，包括具有薄定影构件的定影元件和用于张紧薄定影构件的装置。

公开(公告)号：WO1992017823A1

公开(公告)日：1992-10-15

申请号：PCT/NL1992000049

申请日：1992-03-12

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion

IPC: G03G09/087

CPC classification number: G03G9/1355 ,  C08L23/0853 ,  C08L23/0876 ,  G03G9/12 ,  G03G9/13 ,  G03G9/131 ,  C08L2666/06

Abstract: In a liquid toner for use in imaging processes which comprises pigmented polymer particles, at least one charge director and a hydrocarbon liquid toner carrier, the polymer is a blend of at least two distinct polymer components, the blend being characterized in that in a 40 % non-volatile mixture with a hydrocarbon liquid toner carrier, it has on a semi-logarithmic viscosity vs. temperature cooling curve, a break-point at temperature below about 65 DEG C at a viscosity of between about 3 x 10 centipoises and about 5 x 10 centipoises. The polymer blend and an electrostatic imaging process (particularly one using an intermediate transfer member) utilizing the above toner are also claimed. Use of such polymer blends enables liquid toner to be applied in such processes at no more than and in some cases less than the customary processing temperatures.

Abstract translation: 在用于成像过程的液体调色剂中，其包含着色聚合物颗粒，至少一种电荷导向剂和烃液体调色剂载体，所述聚合物是至少两种不同的聚合物组分的共混物，所述共混物的特征在于在40％ 具有烃液体调色剂载体的非挥发性混合物，其具有半对数粘度对温度冷却曲线，温度低于约65℃的断点，粘度在约3×10 5厘泊和 约5×10 6厘泊。 还要求使用上述调色剂的聚合物共混物和静电成像方法（特别是使用中间转印部件的方法）。 使用这种聚合物共混物可使液体调色剂在不超过和在一些情况下小于常规加工温度的这种方法中施用。

公开(公告)号：WO1992014191A1

公开(公告)日：1992-08-20

申请号：PCT/NL1992000013

申请日：1992-01-21

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  ALMOG, Yaacov ,  AVADIK, Frida

IPC: G03G09/135

CPC classification number: G03G9/135

Abstract: Liquid toner compositions for electrostatic imaging, which comprise colorant particles, a carrier liquid, at least one charge priming agent selected from alkoxides of aluminum and alkoxides of zirconium reacted with said particles and at least one charge director, wherein said charge priming agent is present in the colorant particles only near the surface thereof.

公开(公告)号：WO1992005477A1

公开(公告)日：1992-04-02

申请号：PCT/NL1990000136

申请日：1990-09-19

Applicant: SPECTRUM SCIENCES B.V. ,  LANDA, Benzion

Inventor： SPECTRUM SCIENCES B.V.

IPC: G03G15/01

CPC classification number: G03G15/1605 ,  G03G15/0173 ,  G03G15/6591 ,  G03G2215/00497

Abstract: A method for providing an image on either opaque or transparent substrates (42) to have substantially equal apparent color saturation when viewed and including the steps of: developing a latent electrostatic image on an image bearing surface (16) using a colored liquid developer in a developer system operating at given voltages; and subsequently transferring the image to the substrate (42) wherein said liquid developer, developer system and voltages are the same for printing on both opaque and transparent substrates. The method utilizes a control apparatus, operative when the substrate (42) sought to be printed is transparent, for causing each toner image to be developed on an image bearing surface (16) and transferred to an intermediate transfer member (40) a plurality of times, before the image is transferred therefrom to the transparency, and when the substrate (42) sought to be printed is opaque, for causing each toner image to be developed on the image bearing surface (16) and transferred to the intermediate transfer member (40) only once, before the image is transferred therefrom to the opaque substrate.

Abstract translation: 一种用于在不透明或透明基底（42）上提供图像以在观看时具有基本相等的表观色饱和度的方法，包括以下步骤：使用彩色液体显影剂在图像承载表面（16）上显影静电潜像 显影剂系统在给定电压下工作; 并且随后将图像转印到基板（42）上，其中所述液体显影剂，显影剂系统和电压相同以在不透明和透明基板上进行印刷。 该方法利用一种控制装置，当寻求印刷的基底（42）是透明的时，用于使每个调色剂图像在图像承载表面（16）上显影并转印到中间转印部件（40）上的多个 在将图像从其转印到透明体之前，当寻求印刷的基板（42）不透明时，为了使每个调色剂图像在图像承载表面（16）上显影并转印到中间转印部件（ 40）仅在图像从其转移到不透明基底之前。

公开(公告)号：WO1992003008A1

公开(公告)日：1992-02-20

申请号：PCT/NL1991000114

申请日：1991-07-02

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  PELED, Shimon ,  GREENBERG, Abraham ,  LIVNE, Haim

IPC: H04N01/04

CPC classification number: H04N1/047 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/03154 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04744 ,  H04N2201/0476 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: Apparatus for optical imaging onto a moving surface including a movable surface for receiving an optical image, apparatus for measuring the movement of the surface and providing an surface movement reference signal, optical image producing apparatus operative to produce at least one scanning optical beam for scanning the surface and to provide timing reference signals, and a servo-controlled relay mirror located so as to reflect the at least one scanning beam onto the moving surface. The mirror is precisely positioned in response to the relationship between the substrate movement reference signals and the timing reference signals to ensure proper positioning of the optical image on the moving surface.

公开(公告)号：WO1991017485A1

公开(公告)日：1991-11-14

申请号：PCT/NL1990000066

申请日：1990-05-08

Applicant: SPECTRUM SCIENCES B.V. ,  KRUMBERG, Yakov ,  KARIN, Jakob ,  CHATOW, Ehud

Inventor： SPECTRUM SCIENCES B.V.

IPC: G03G05/04

CPC classification number: G03G5/04 ,  G03G5/005 ,  G03G5/06 ,  G03G5/10 ,  G03G5/147 ,  G03G5/1476

Abstract: An organic photoconductor including a base layer formed of a first material and a photoconductive layer formed of a second material. The organic photoconductor being characterized in that when it is maintained in a curved orientation with the photoconductive layer facing outward, the photoconductive layer is subjected to less strees than the base layer. In one embodiment the first material is relatively more flexible and stretchable than said second material and the materials are pre-stressed in opposite senses. In a second embodiment the first material is relatively flexible and stretchable and the second material is an initially less flexible and stretchable material which has been chemically treated to increase its stretchability and flexibility.

Abstract translation: 一种有机光电导体，包括由第一材料形成的基底层和由第二材料形成的光电导层。 有机光电导体的特征在于，当光电导层面向外时，当光电导层保持在弯曲取向时，光电导层比基层低一些。 在一个实施例中，第一材料比所述第二材料相对更灵活和可拉伸，并且材料以相反的感官预应力。 在第二实施例中，第一材料是相对柔性的并且是可拉伸的，并且第二种材料是最初较不柔软和可拉伸的材料，其已被化学处理以增加其拉伸性和柔韧性。

公开(公告)号：WO1991002297A1

公开(公告)日：1991-02-21

申请号：PCT/NL1990000101

申请日：1990-07-24

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  ALMOG, Yaacov ,  AVADIK, Frida

IPC: G03G09/135

CPC classification number: G03G9/135

Abstract: A liquid developer system for use in electrostatic imaging processes of the positive toner type comprises toner particles micro-dispersed in a carrier liquid and at least one charge director compound soluble in the carrier liquid, wherein the total amount of charge director compound is associated with the toner particles and essentially no charge director compound is present in the carrier liquid. Especially useful charge director compounds are those which have been reacted with at least about one molar equivalent of at least one acid containing at least one organic moiety, the acid being effective in that the reacted positive charge director compound increases the short-term charging of the micro-dispersed toner particles as compared with charging when the same molar amount of unreacted charge director compound is used. Positive charge director compounds reacted with acid are e.g. those of the general formula RSiX3 wherein R is a hydrocarbon radical, one or more of the hydrogen atoms of which may be substituted by halogen atoms, and X is halogen or lower alkoxy; the reaction products with acid of the compounds RSiX3 are believed to be novel.

公开(公告)号：WO1990014394A1

公开(公告)日：1990-11-29

申请号：PCT/NL1990000070

申请日：1990-05-14

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  SCHNEIDER, Avner

IPC: C09D11/02

CPC classification number: C09D11/06

Abstract: A ribbon ink has a viscosity that increases with increasing rate of shear for rates of shear greater than a predetermined value. A printer ribbon for use with an impact printer comprises a substate containing ink having a viscosity that increases with increasing rate of shear for rates of shear greater than a predetermined value. The substrate is preferably formed of two layers of non-woven fabric.

Abstract translation: 带状墨水的粘度随剪切速率的增加而增加，剪切速率大于预定值。 与冲击式打印机一起使用的打印机色带包括含有油墨的基底，其具有随剪切速率的增加而随着剪切速率的增加而增加的粘度，其大于预定值。 基材优选由两层无纺布形成。

公开(公告)号：WO1990010894A1

公开(公告)日：1990-09-20

申请号：PCT/NL1990000025

申请日：1990-03-05

Applicant: SPECTRUM SCIENCES B.V.

Inventor： SPECTRUM SCIENCES B.V. ,  LANDA, Benzion ,  ALMOG, Yaacov ,  PELED, Amnon

IPC: G03G09/12

CPC classification number: G03G13/10 ,  G03G9/1355

Abstract: A self-replenishing liquid developer system for an electrostatic imaging system including an insulating non-polar carrier liquid, toner particles dispersed in the carrier liquid, at least one charge director compound having a limited solubility in the carrier liquid and dissolved therein at its saturation concentration and excess of the at least one charge director compound comprised in a solid phase and being in equilibrium contact with the carrier liquid.

Abstract translation: 一种用于静电成像系统的自补充液体显影剂系统，其包括绝缘非极性载体液体，分散在载体液体中的调色剂颗粒，至少一种在载体液体中溶解度有限且溶解于其中的饱和浓度的电荷导向剂化合物 以及包含在固相中并与载体液体平衡接触的至少一种电荷导向剂化合物的过量。