Blanket manufacturing apparatus and blanket manufacturing method

Patent metadata

Field	Value
Publication number	US-10434809-B2
Application number	US-201414913598-A
Country	US
Kind code	B2
Filing date	Oct 16, 2014
Priority date	Oct 16, 2013
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

The present specification relates to an apparatus for manufacturing a blanket. The apparatus includes a surface plate on which a substrate film is supplied; a coating unit coating a blanket composition on the substrate film; and a comma blade horizontally moving on the surface plate coated with the blanket composition. Of the whole surface of the comma blade, the surface contacting the blanket composition is an angular surface. This application also relates to a method for manufacturing a blanket, a blanket manufactured using the same, a reverse offset printing roll provided with the blanket, and a reverse offset printing apparatus including the same.

First claim

The invention claimed is:

1. An apparatus for manufacturing a blanket comprising:
a surface plate on which a substrate film is supplied;
a coating unit coating a blanket composition on the substrate film; and
a comma blade horizontally moving on the surface plate coated with the blanket composition,
wherein the comma blade comprises an angular surface for contacting the blanket composition and the angular surface of the comma blade comprises a structure in which two planes forming the angular surface contact each other at an exterior angle of 5° or more and 30° or less, and
wherein a distance between an upper surface of the surface plate and an end of the comma blade closest to the upper surface of the surface plate is 200 μm or more and 5 mm or less such that the distance remains constant during horizontal movement.

2. The apparatus for manufacturing a blanket of claim 1 , wherein viscosity of the blanket composition is 10,000 cp or more and 1,000,000 cp or less.

3. The apparatus for manufacturing a blanket of claim 1 , wherein a thickness of the coated blanket composition is 0.1 mm or more and 100 mm or less.

4. The apparatus for manufacturing a blanket of claim 1 , wherein the surface plate has a thickness variation of 20 μm or less.

5. The apparatus for manufacturing a blanket of claim 1 , wherein the surface plate includes any one or more of granite, artificial granite, diamond resins, ceramics, metals and glass.

6. The apparatus for manufacturing a blanket of claim 1 , wherein the surface plate is provided with substrate film adhering means.

7. The apparatus for manufacturing a blanket of claim 6 , wherein the substrate film adhering means includes a vacuum suction unit having any one or more of a hole structure, a groove structure and a line structure formed on the surface of the surface plate.

8. The apparatus for manufacturing a blanket of claim 1 , further comprising:
a control unit adjusting a distance from an end of the comma blade closest from the surface plate to an upper surface of the surface plate.

9. The apparatus for manufacturing a blanket of claim 1 , further comprising:
a substrate film supplying unit; and
a substrate film collecting unit.

Assignees

• Lg Chemical Ltd

Inventors

• Koo Beom Mo
• Lee Seung Heon
• Hwang Ji Young
• Son Yong Goo
• Kim Jooyeon
• Park Jeseob
• Lee Kun Seok

Classifications

• B05C11/045

  characterised by the blades themselves · CPC title

• B41N2210/14

  characterised by macromolecular organic compounds · CPC title

• B05C11/023

  Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface (B05C11/021, B05C11/04 take precedence) · CPC title

• B41N10/02 Primary

  Blanket structure · CPC title

• B05C11/04

  with blades · CPC title