Title:
THERMAL INK ROLL
Document Type and Number:
Japanese Patent JP3222279
Kind Code:
B2
Abstract:
PURPOSE: To improve print durability by preparing a thermal ink roll with hot-melt ink having the viscosity of specific cPs and having a Ti value (thixotropy index) of a specified value or below.
CONSTITUTION: A thermal ink roll is prepared by impregnating an open-cell foam, in heating, with hot-melt ink having the viscosity of 50 to 8000cPs at a temperature 140°C and having a Ti value of 1.5 or below. The hot-melt ink contains thermoplastic resin and a coloring agent and has an adhesion imparting agent, wax and a plasticizer compounded as occasion demands, and it can be prepared by heat-melting these constituents and by heat-dispersing them by using a dispersing machine such as a roll mill. As for concrete examples of the thermoplastic resin, an ethylene-acetate vinyl copolymer, polyester, polyamide, polyethylene, etc., can be mentioned. As to concrete examples of the adhesion imparting agent, rosin, a rosin derivative, terpene, denatured terpene resin, etc., can be mentioned.
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| JPS58128093 | 【考案の名称】インキ吸取ロ-ラ付ドラム形XYプロツタ |
Inventors:
Toshiaki Ando
Application Number:
JP20633893A
Publication Date:
October 22, 2001
Filing Date:
August 20, 1993
Export Citation:
Assignee:
General Co., Ltd.
International Classes:
B41J27/00; B41J27/20; (IPC1-7): B41J27/20; B41J27/00
Domestic Patent References:
| JP2273278A | ||||
| JP59196290A |
Attorney, Agent or Firm:
Masao Okabe (5 others)