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Liner-free label

A label and web technology, applied in the direction of identification devices, instruments, cardboard items, etc., can solve the problems of pollution, sticky adhesive pollution, etc., and achieve the effect of reducing adhesive residue and easy mechanical cutting

Pending Publication Date: 2022-07-01
UPM RAFLATEC OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional linerless labels have been known to cause problems
These problems may be due to the pressure sensitive adhesive being exposed without a protective release liner, resulting in contamination of the tacky adhesive, for example, onto the internal mechanisms of a printing press
Additionally, applying adhesives at high web speeds presents some manufacturing challenges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0394] Reference machine rolls including adhesive strips but without position-alternating continuous adhesive strips, as well as novel rolls including alternating-position adhesive strips, were made.

[0395] The reference roll includes adhesive strips with adhesive-free areas between the adhesive strips. The width of the adhesive strip is substantially the same as the width of the adhesive-free area.

[0396] The novel rolls included alternating positions of adhesive strips, including adhesive-free areas of the same width as the reference roll and adhesive strips of the same width. The width of the alternating strips of adhesive was 25 mm. The frequency of the actuators during the manufacturing steps of the alternating-position adhesive strips was 1 Hz. The web is driven at a speed of about 200 meters / 60 seconds, so moves a few meters per second.

[0397] Machine rolls are slit by using a slitter. The width and length of each customer roll were varied during testing.

[...

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Abstract

The invention relates to a method of manufacturing a continuous linerless label web (100). A method for producing a continuous linerless label web (100) comprising a face (110) having a first side (111) and a second side (112) and an alternating adhesive coating on the second side (112) wherein the method comprises: providing the face (110) with a release coating disposed on the first side (111), providing an alternating continuous adhesive strip (121) on the second side (112) of the web (100), wherein a predetermined property of the positional alternating continuous adhesive strips (121) is selected such that the number of strips in each customer roll (300) is one or more, each strip having a width less than the width of each customer roll (300), and the positional frequency is selected such that one oscillation period covers 0.1-10 machine roll (570) peripheral lengths and 1-100 customer roll (300) peripheral lengths, the outer peripheral length is defined as a length of an outer periphery of the full roll. The invention also relates to a linerless label web and a linerless customer roll.

Description

technical field [0001] This specification relates to a method of making a linerless label web comprising a pressure sensitive adhesive. This specification also relates to linerless label webs comprising pressure sensitive adhesives. Background technique [0002] In industry, a wide variety of linerless labels are produced. Linerless labels can be used for a variety of purposes, such as print-on-demand. However, conventional linerless labels are known to cause some problems. These problems may be due to the pressure sensitive adhesive being exposed without a protective release liner, resulting in contamination of the tacky adhesive, for example, to the internal mechanisms of the printing press. Additionally, applying adhesives at high web speeds presents some manufacturing challenges. [0003] Accordingly, there is a need for improved linerless label products and improved methods for making label products. The successful production of linerless labels requires the succes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02G09F3/10
CPCG09F3/02G09F3/10G09F2003/0241B31D1/021B05D5/10B05D2502/00G09F2003/0229G09F2003/0258
Inventor M·哈沃宁P·科索沃斯基
Owner UPM RAFLATEC OY
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