Light irradiating apparatus, light irradiating process, and image recording process
a technology of light irradiation and light irradiation process, which is applied in the field light irradiation process, image recording process, can solve the problems of increasing cost, ultraviolet lamp power consumption, and continuous spectrum giving thermal damage to recording medium, so as to reduce the heat generation of light emitting elements, prolong life, and reduce power consumption of light irradiation apparatus
Inactive Publication Date: 2011-02-03
SEIKO EPSON CORP
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- Application Information
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Benefits of technology
The solution effectively reduces thermal damage to light sources, lowers energy consumption, and enhances reliability by using fewer, more spaced-out light sources, allowing for efficient curing of light curing type inks with improved versatility and processing speed.
Problems solved by technology
However, light emitted from the ultraviolet lamp has a continuous spectrum over a wide wavelength region and includes visible light and infrared light in addition to a plurality of ultraviolet lights having different wavelength regions, so that there has been a problem that the infrared light in the continuous spectrum gives a thermal damage to the recording medium.
When a band-pass filter is provided in order to remove the hazardous infrared light, there has been a problem that the structure of a device becomes complicated, resulting in an increase in cost.
Further, the ultraviolet lamp has great power consumption, so that there has been a problem that energy saving of the ultraviolet irradiating apparatus is difficult.
In addition, the ultraviolet lamp itself is large, so that there has also been a problem that miniaturization and weight saving of the apparatus is difficult.
However, these optical scanning systems have movable parts.
This makes it difficult to further miniaturize the apparatus, and further, a decrease in reliability caused by malfunction is unavoidable.
However, there has been a problem that the structure of densely arranging small-sized light sources increases the number of light sources themselves, raises cost, and causes heat generated from the light sources to be accumulated between the light sources, also resulting in a decrease in life of the light sources due to their thermal damage and necessity of a cooling operation and means.
Method used
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examples
[0159]The present invention will be illustrated in greater detail with reference to the following Examples, but the invention should not be construed as being limited thereto.
[0160]1. Preparation of Polymerizable Fine Particles 1A and Dispersion Thereof
[0161]To a 200-mL Erlenmeyer flask was added 88.1 parts by weight of a silica sol IPA-ST (an isopropyl alcohol (hereinafter abbreviated as “IPA”) dispersion having a silica concentration of 30% by weight, manufactured by Nissan Chemical Industries, Ltd.), and then, 7.9 parts by weight of a silane coupling agent, Sila-Ace S710 (3-methacryloxypropyltrimethoxysilane, manufactured by Chisso. Corp.) was added thereto. While stirring with a magnetic stirrer, 4 parts by weight of hydrochloric acid having a concentration of 0.05 mol / L was added, and the reaction was carried out with stirring at room temperature for 24 hours. As a result, IPA Dispersion A containing methacryl group-containing polymerizable fine particles 1A (MPS) was obtained....
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Abstract
The present invention provides a light irradiating apparatus comprising a plurality of light emitting elements which emit light of a specific wavelength region and form elliptical light images on a surface to be irradiated, wherein the plurality of light emitting elements are mutually arranged so that the light images are made continuous along their major axis directions. Further, the invention also discloses the above-mentioned light irradiating process and an image recording process.
Description
FIELD OF THE INVENTION[0001]The present invention relates to a light irradiating apparatus for irradiating light having a specific wavelength region on a surface to be irradiated, a light irradiating process and an image recording process, and more particularly to a light irradiating apparatus suitable for using when a light curing type ink adhered onto a recording medium with an ink jet printer or the like is cured by light irradiation, a light irradiating process and an image recording process.BACKGROUND OF THE INVENTION[0002]In recent years, attention has been drawn to ultraviolet curing type inks as inks used in ink jet printers and the like.[0003]The point at which the ultraviolet curing type inks are different from ordinary water-based and oil-based inks is that the ultraviolet curing type inks are quickly cured when adhered onto recording media (for example, print paper and the like), and then, irradiated with a proper amount of a ultraviolet ray, thereby being able to mainta...
Claims
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IPC IPC(8): B41J2/01F21V9/00B41M5/00C09D11/00C09D11/38
CPCB41J11/002B41J11/0021B41J11/00214B41J11/00216B41J11/00218
InventorOYANAGI, TAKASHINAKANO, KEITERO
OwnerSEIKO EPSON CORP