Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Short inking unit

An ink and coating roller technology, applied in printing, rotary printing presses, printing presses, etc., can solve the problems of difficulty in forming ink/wetting solution emulsion, difficulty in changing modes, and small number of pinch points, etc., which can affect ink consumption, The effect of uniform height and avoidance of ghosting

Inactive Publication Date: 2005-06-15
MANROLANAD AG
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to only one applicator roller, the number of nip points is very small, making it difficult to form a stable ink / dampening solution emulsion
Another drawback of the known arrangement is that it is difficult to change the pattern due to the diameter of the applicator roller being related to the diameter of the plate cylinder
In addition, cylinders require very hard roll covers, adversely affecting production costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Short inking unit
  • Short inking unit
  • Short inking unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The main field of application of the invention lies in lithographic printing units for indirect or direct lithography, in the form of offset printing units for indirect or direct offset printing. The basic structure and method of operation of a printing unit of this type are known per se and therefore no further explanation is required here.

[0018] Figure 1-4 The offset printing unit shown comprises a printing cylinder 1 , a transfer cylinder 2 and an impression cylinder 3 . The printed material web 12 passes between the transfer cylinder 2 and the embossing cylinder 3 . In the case of wet offset printing, ink and dampening solution are applied to the printing form cylinder 1 . The inking unit 4 is arranged to supply ink. A wetting unit (not shown in more detail) may be arranged to supply a wetting solution. Wetting unit is omitted in case of waterless offset printing.

[0019] The inking unit 4 is configured as a short inking unit. It comprises a plurality of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Short inking unit for lithographic printing units, with applicator roller arrangement interacting with plate cylinder (1) and corresponding to engraved roller arrangement, each engraved roller (7, 8) of the engraved roller arrangement enables ink application On top of and interacting with at least one doctor blade, the applicator roller arrangement has a plurality of applicator rollers ( 5, 6), and the engraved roller configuration has a plurality of engraved rollers (7, 8) that are mutually offset in the direction of rotation of the printing plate cylinder (1) and form a roll train together with the applicator rollers (5, 6), Applicator rollers with rollers rolling in pairs and each defining a nip point, all rollers of the roller train having a small diameter relative to the printing plate cylinder (1), engraving rollers (7, 8) and applicator rollers in each case (5, 6) Interacting at respective nip points of the roll train and at least one end of the roll train being formed by an engraved roll interacting only with the applicator roll.

Description

technical field [0001] The invention relates to a short inking unit for a lithographic printing unit, in particular for an offset printing unit, having applicator rollers interacting with the plate cylinder and corresponding to engraved roller arrangements, each of which An engraved roller has ink applied thereto and interacts with at least one doctor blade. Background technique [0002] In known short inking units of this type, the applicator roller has a diameter corresponding to the diameter of the printing plate cylinder. Although this diameter uniformity avoids a phenomenon known as ghosting on the printed material, an applicator roll having the same dimensions as the plate cylinder typically requires a very rarely large amount of space within the printing press. For this reason, the known short inking units likewise generally only comprise one applicator roller. For reasons of space, it is not possible to use several applicator rollers here. Due to the large diamete...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B41F31/02
CPCB41F31/027
Inventor R·康拉德
Owner MANROLANAD AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com