US 2020/0026193 A1 · PROCESSING METHOD AND PROCESSING APPARATUS

Abstract

Provided are a processing method and a processing apparatus in which a concentration of a solid content of a development fatigue liquid is low and a moisture content of a discharged solid substance is small. The processing method is a method for removing a first solid substance having a smaller specific gravity than the washout liquid and a second solid substance having a larger specific gravity than the washout liquid from a development fatigue liquid including a solid substance generated by removal of a non-exposed portion of a photosensitive resin plate that has been exposed in an image shape by development using the washout liquid. The method includes a first step of centrifugally separating the first solid substance and the second solid substance included in the development fatigue liquid in a rotating container, accumulating the second solid substance on an inner wall of the container, and accumulating the first solid substance on a holding member provided in the container, a second step of discharging the development fatigue liquid from the container in a state in which the first solid substance accumulated on the holding member is held on the holding member, and a third step of rotating the container, thereby removing the first solid substance held on the holding member from the holding member.

Claims18

Dependent claims

A processing method for removing a first solid substance having a smaller specific gravity than a washout liquid and a second solid substance having a larger specific gravity than the washout liquid from a development fatigue liquid including a solid substance generated by removal of a non-exposed portion of a photosensitive resin plate that has been exposed in an image shape by development using the washout liquid, the method comprising:

a first step of centrifugally separating the first solid substance and the second solid substance included in the development fatigue liquid in a rotating container, accumulating the second solid substance on an inner wall of the container, and accumulating the first solid substance on a holding member provided in the container;
a second step of stopping the centrifugal separation and discharging the development fatigue liquid from the container in a state in which the first solid substance accumulated on the holding member is held on the holding member;
and
a third step of rotating the container, thereby removing the first solid substance held on the holding member from the holding member.

1 more element

A processing apparatus comprising:

a container that has an opening portion and stores a development fatigue liquid including a solid substance generated by removal of a non-exposed portion of a photosensitive resin plate that has been exposed in an image shape by development using a washout liquid;
a driving portion that centrifugally separates a first solid substance having a smaller specific gravity than the washout liquid and a second solid substance having a larger specific gravity than the washout liquid in the container by rotating the container;
a confining member that is provided in the container so as to face the opening portion and stores the first solid substance in the container;
at least one holding member that is provided in the container opposite to the opening portion across the confining member and holds the first solid substance that is accumulated by the centrifugal separation;
and
a control portion that rotates the container in which the development fatigue liquid is stored by the driving portion to carry out the centrifugal separation, accumulates the first solid substance on the holding member, stops rotation of the container by the driving portion, discharges the development fatigue liquid from the container in a state in which the first solid substance accumulated on the holding member is held on the holding member, and then rotates the container by the driving portion again.

3 more elements

Dependencies are inferred from the claim text.

Processing method and processing apparatus

Life of this patent

Processing method and processing apparatus

Life of this patent

Abstract

Claims18