Ink wastage absorber and ink supporter
AssigneeBridgestone Corporation
InventorsYoshihiro Katsumata, Hideya Kinoshita
Life of this patent
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Abstract
An ink wastage absorber is made from a flexible polyurethane foam having an air-permeability of 1.0 cc/cm2/sec or more, or is made from a flexible polyurethane foam produced by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, wherein the polyurethane foam is impregnated with a surface active agent. An ink supporter includes an ink permeation member provided at a portion corresponding to a printer head and an ink absorbing member being in contact with the ink permeation member.
Claims26
An ink wastage absorber comprising a flexible polyurethane foam having an air-permeability of 1.0 cc/cm2/sec or more.
An ink wastage absorber comprising a flexible polyurethane foam produced by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, wherein said flexible polyurethane foam is impregnated with a surface active agent.
A process of producing an ink wastage absorber, comprising the steps of:
- preparing a flexible polyurethane foam by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent;
- dipping said flexible polyurethane foam in water in which a surface active agent is dispersed;
- and
- squeezing water from said flexible polyurethane foam thus treated and then drying said flexible polyurethane foam, to make said surface active agent adhere on the surface of said soft polyurethane foam.
An ink supporter comprising:
- an ink permeation member provided at a portion corresponding to a printer head, said ink permeation member being obtained by producing a flexible polyurethane foam by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, and making said flexible polyurethane foam contain a surface active agent;
- and
- an ink absorbing member being in contact with said ink permeation member, said ink absorbing member being obtained by producing a flexible polyurethane foam by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, and thermally compressing said flexible polyurethane foam at a compression magnification of 2 to 20 times by a hot press.
Dependencies are inferred from the claim text.