The present invention relates to aqueous ink jet ink compositions comprising a water-soluble or ink-compatible anti-intercolor bleed agent. The ink jet ink compositions typically comprise water, a colorant of 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-soluble or ink-compatible intercolor bleed agents of the invention comprise glycine materials with or without a fluorine atom and are represented by formula (I) in either ionic or nonionic forms, particularly those of fluorinated glycine salts with high fluorine content. The water-soluble or ink-compatible anti-intercolor bleed agent in an ink jet composition is believed to accelerate ink drying and to form hydrophobic layers on a print substrate near the image boundary in an ink jet printing process, thus minimizing undesired mixing of different neighboring inks resulting in a reduction of 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 image on transparencies. The ink jet ink compositions comprising the water-soluble or ink-compatible anti-intercolor bleed agents can be used in a multi-color ink jet printing process to obtain multi-color ink jet images at a high speed.

Ink jet ink compositions and printing processes

A process and apparatus for forming an image on a moving substrate (1) involves ink jet printing a radiation-curable ink onto the substrate with a print head (4). The image is cured by exposure to a radiation source (19). The time between printing and curing is substantially the same for all portions of the substrate (1).

Ink jet printer with apparatus for curing ink and method

A multi-color ink-jet printer in which a first partial image is created on a recording medium, and then a second partial image is created on the same recording medium after the first partial image is substantially dried. The first partial image comprises an ink which dries at a slower rate than that of the second partial image. In one embodiment, means are provided for heating the recording medium prior to the creation of the second partial image.

Thermal ink-jet printing with fast- and slow-drying inks

A paper curl reduction process is conducted by applying an aqueous dye or pigment ink in an image-wise fashion to a side of a substrate and by applying a clear aqueous liquid to the opposite side of the substrate. An ink printing device includes at least one printhead for applying an aqueous ink to one side of a substrate to form visible images and at least one applicator for applying a clear aqueous liquid to the opposite side of the substrate. A paper curl reduction process is also conducted by applying an aqueous dye or pigment ink and an optional clear aqueous liquid in a selected image-wise fashion by a thermal ink jet printing method to both sides of a substrate to achieve duplex ink jet printing with visible images on two sides of the said substrate.

Printing process, apparatus, and materials for the reduction of paper curl

An apparatus for drying ink deposited upon cut sheet of paper. The apparatus includes a microwave generating member to generate microwave energy for the ink and an applying member connected to said microwave generating member to apply resonating traveling microwaves to the paper. The applicator member includes a serpentine applicator for drying the ink and includes input slots and output slots for moving cut sheet of paper through the serpentine applicator. A transport member transports ink printed cut sheet paper stock from the input slot to the output slot by a belt running through the center of the applicator.

Apparatus and method for drying ink deposited by ink jet printing

Disclosed is a printing process which comprises applying in imagewise fashion to a substrate an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter, and subsequently exposing the substrate to microwave radiation, thereby drying the images on the substrate. A specific embodiment of the invention is directed to a thermal ink jet printing process which comprises (1) incorporating into a thermal ink jet printing apparatus an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter; (2) heating the ink in an imagewise pattern to cause bubbles to form therein, thereby causing droplets of the ink to be ejected in an imagewise pattern onto a substrate, thereby generating images on the substrate; and (3) exposing the substrate to microwave radiation, thereby drying the images on the substrate.

Printing processes with microwave drying

A phase shifter for shifting the phase angle of microwaves traveling in a waveguide of a microwave circuit. The phase shifter includes a dielectric plate which has first and second parallel surfaces, a distal edge, a proximate edge, a leading edge, and a trailing edge where each of the edges defines the outer bounds of the first and second parallel surfaces. The dielectric plate is shaped like a parallelogram lacking any right angles and is made of a microwave low loss dielectric material such as polystyrene or polytetrafluoroethylene. The height of the dielectric plate is less than one half the height of the waveguide side wall and the length is less than one guide wavelength long. The phase shifter fine tunes a resonating microwave circuit and provides approximately three-quarters of an inch adjustment of microwave circuit length.

Phase shifter for fine tuning a microwave applicator

A method and apparatus for controlling curl in a liquid ink printer. The liquid ink printer deposits an anticurl material on the side of a printed sheet opposite the one having printing deposited thereon. The anticurl material is a fluid which counteracts the steady state curl in the direction of the printed image resulting from active drying of the printed sheet. The back side of a printed sheet has deposited thereon an anticurl fluid which can contain water, a penetrant, and a humectant like material such as diethylene glycol, ethylene glycol, sulfolane and glycerin. The anticurl material is deposited with a roller made of a foam material for absorbing the anticurl fluid or a roller having dimples disposed on the surface thereof. In addition, the anticurl fluid can be deposited by a spray device or a thermal ink jet printhead ejecting anticurl fluid.

Curl control of printed sheets

A transport system for transporting a recording sheet having liquid ink deposited thereon through a dryer for drying the liquid ink having an input portion and an output portion. The transport system includes a transport belt disposed between the input portion and the output portion for transporting the recording sheet through the dryer. A negative pressure member is located beneath the belt and defines a negative pressure chamber. The pressure member decreases the pressure within the pressure member so that a non-uniform negative pressure is applied to the recording sheet during transport through the dryer. A directing member located within a plenum directs differing negative pressures within the plenum such that negative pressures decrease in amplitude along the transport direction. The application of a negative pressure within the plenum also tends to reduce or remove evaporated liquid driven from the inks during drying. This removal of evaporated liquid prevents or reduces the occurrence of a phenomenon known as "dryer rain". Dryer rain results from the accumulation of evaporated liquids within the dryer which eventually condenses sufficiently to fall within the dryer back onto the recorded sheet.

Recording sheet transport and effluents removal system

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Kenneth C. Peter

Author Tools

Chat about Author