John Lin

US Patent:

6383274, May 7, 2002

Filed:

Nov 24, 1999

Appl. No.:

09/448673

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1102

US Classification:

106 3127, 106 3128, 106 3143, 106 3158, 106 3159, 106 316, 106 3175, 106 3186, 106 3189

Abstract:

The present invention relates to aqueous ink jet ink compositions comprising a water-soluble or ink-compatible anti-intercolor bleed agent and ink jet printing processes. The inks typically comprise at least water, a colorant of a dye or pigment, or a mixture of dye and pigment, and a water-soluble or ink-compatible anti-intercolor bleed agent. In one embodiment the water-compatible intercolor bleed agent of the invention comprises a fluorinated composition, more particularly a perfluoroalkyl acid salt. The water-soluble or ink-compatible anti-intercolor bleed agent can form hydrophobic layers near the image boundary, thus preventing undesired mixing of different neighboring inks which forms intercolor bleeding. The inks of the present invention exhibit reduced drying time, intercolor bleeding, and image defect as well as providing uniform ink image on transparencies.

US Patent:

6383275, May 7, 2002

Filed:

Nov 24, 1999

Appl. No.:

09/449708

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1102

US Classification:

106 3127, 106 3128, 106 3143, 106 3158, 106 316, 106 3175, 106 3186

Abstract:

The present invention relates to aqueous ink jet ink compositions comprising an anti-intercolor bleed agent, preferably a water soluble or ink-compatible agent. The inks typically also comprise water and at least a colorant of a dye, a pigment, or a mixture of dye and pigment. In one embodiment, ink jet ink compositions comprising an anti-intercolor bleed agent which is represented by {[(R) âG) ] } (A)(X) (Formula (I)), and ink jet printing processes which print the ink jet ink compositions in any desired printing sequence or order onto an optionally heated substrate are provided. The water-soluble or ink-compatible anti-intercolor bleed agent may form hydrophobic layers near the image boundary, thus preventing undesired mixing of two different neighboring inks which forms intercolor bleed. The ink jet ink compositions of the present invention exhibit reduced drying time, intercolor bleeding, and image defect as well as providing uniform ink images on transparencies.

US Patent:

6475271, Nov 5, 2002

Filed:

Dec 28, 2000

Appl. No.:

09/749696

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1100

US Classification:

106 3127, 106 316, 106 3158, 106 3186

Abstract:

A multicolor ink jet printing process employs an ink jet ink composition comprising water, a colorant of pigment, dye, or mixtures thereof, and a low boiling point additive to produce high quality multicolor ink jet images with minimal intercolor bleed and lines with sharp edges as characterized by a relatively low mid frequency line edge noise (MFLEN) number. The additive is an alcohol or thiol having a boiling point less than or equal to about 115Â C. The aforementioned ink jet ink composition can further include an optional additive of alcohol or thiol with a boiling point less than or equal to about 135Â C. if necessary. The desired additive increases the inks drying rate with fast evaporation and an accelerated penetration into a print substrate (e. g. paper) upon printing. As a result, little or minimum residual ink (e. g.

US Patent:

6528557, Mar 4, 2003

Filed:

Feb 2, 2001

Appl. No.:

09/776515

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1110

US Classification:

523160, 524505, 524506, 528 25, 528 27, 528 29, 528 43

Abstract:

Disclosed is an ink composition comprising water, a colorant, and a linear ASBSâAâ block copolymer wherein A and Aâ are each, independently of the other, blocks comprising one or more repeat monomer units of ethylene oxide, propylene oxide, or random or alternating mixtures of ethylene oxide and propylene oxide, B is a block comprising one or more repeat monomer units of an alkylsiloxane, a dialkylsiloxane, an alkyl aryl siloxane, a diarylsiloxane, or mixtures thereof, S is an optional spacer group between the A and B blocks, and Sâ is an optional spacer group between the B and Aâ blocks. Also disclosed is a multicolor ink jet printing process using the ink, wherein dry time is reduced and/or intercolor bleed is reduced.

US Patent:

6613815, Sep 2, 2003

Filed:

Feb 2, 2001

Appl. No.:

09/775853

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1110

US Classification:

523160, 524505, 524506, 528 25, 528 29, 528 43

Abstract:

Disclosed is an ink composition comprising water, a colorant, and an ABSCSâBâAâ or BASCSâAâBâ block copolymer wherein A and Aâ are blocks containing one or more ethylene oxide repeat monomer units, B and Bâ are blocks containing one or more propylene oxide repeat monomer units, C is a block comprising one or more repeat monomer units of an alkylsiloxane, a dialkylsiloxane, an alkyl aryl siloxane, or a diarylsiloxane, S is an optional spacer group between the A or B block and the C block, and Sâ is an optional spacer group between the C block and the Aâ or Bâ block. Also disclosed is a multicolor ink jet printing process using the ink, wherein dry time is reduced and/or intercolor bleed is reduced.

US Patent:

60221046, Feb 8, 2000

Filed:

May 2, 1997

Appl. No.:

8/850389

Inventors:

John Wei-Ping Lin - Webster NY
Michael C. Ferringer - Ontario NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 201
B41J 221

US Classification:

347102

Abstract:

In an ink jet printing process, a desired vacuum is applied to the back side of a print substrate with proper feedback and control. The optimum vacuum exerts a suction force on ink dispersed on the front side of the print substrate to accelerate penetration of the ink into the print substrate and to reduce smear and intercolor bleeding. In addition, the vacuum may be applied in the ink jet printing process in combination with various other techniques including heating of the print substrate at any stage of printing process including before, during, after, and combinations thereof and delaying the time between ink dispersing of two different inks as in the checkerboard printing method. The employment of proper vacuum, inks, and printheads including partial-width or full-width array printheads allows a fast speed multi-color ink jet printing process to be carried out on a print substrate to give high resolution (e. g. , 600 spi) multi-color images with good print quality.

US Patent:

53568222, Oct 18, 1994

Filed:

Jan 21, 1994

Appl. No.:

8/184516

Inventors:

John Lin - Ellicott City MD
Andras F. Cserhati - Columbia MD

Assignee:

AlliedSignal Inc. - Morris Township, Morris County NJ

International Classification:

H01L 21265

US Classification:

437 34

Abstract:

A method for making all complementary BiCDMOS devices on a SOI substrate (10). Isolated n. sup. - and p. sup. - regions (20,32,34,36,40,42) are formed on the silicon layer (16) and oxidized. LOCOS oxide regions (28) are formed on selected pairs of the n. sup. - and p. sup. - regions on which gates (44) for complementary DMOS device (114,116) and field plates (46) for complementary bipolar devices (118,120) are formed. Gates (48) for complementary MOS devices (122,124) are formed directly on the oxidized silicon layer (24). N-type and p-type dopants are then implanted into the silicon layer (16) forming n body and p body areas (54,56,58,60). Selected n. sup. + and p. sup. + areas (66,68) are formed in the n body and p body areas (54,56,58,60) as well as selected areas of n. sup. - and p. sup. - regions (30,32,34,36,40,42). The substrate (10) is then covered with an oxide layer and windows etched therethrough to expose said n. sup. + and p. sup.

US Patent:

56931298, Dec 2, 1997

Filed:

Jan 13, 1997

Appl. No.:

8/785175

Inventors:

John Wei-Ping Lin - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

C09D 1102

US Classification:

106 3143

Abstract:

An ink jet ink composition comprises water; a colorant selected from the group consisting of a dye, a pigment, and a mixture of a dye and pigment; and a material selected from the group consisting of (1) a hydroxyamide derivative having at least one hydroxyl group and at least one amide group; (2) a mercaptoamide derivative having at least one mercaptol group and at least one amide group; (3) a hydroxythioamide derivative having at least one hydroxyl group and at least one thioamide group; (4) a mercaptothioamide derivative having at least one mercaptol group and at least one thioamide group; (5) an oxyalkylene(alkyleneoxide) reaction product of the above said derivatives; (6) a thioalkylene(alkylenesulfide) reaction product of the above said derivatives; and (7) mixtures thereof. The inks comprising the said ink jet ink composition exhibit good latency especially in a high resolution thermal ink jet printhead (e. g. , 600 spi) and can be printed onto a print substrate either with or without heat for the drying to give excellent images with reduced curl and cockle.