Linerless thermosensitive recording body package

Patent metadata

Field	Value
Publication number	US-11046043-B2
Application number	US-201816493559-A
Country	US
Kind code	B2
Filing date	Mar 12, 2018
Priority date	Mar 17, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Provided is a linerless thermosensitive recording body package, a roll of a linerless thermosensitive recording sheet being packaged in the linerless thermosensitive recording body package, the linerless thermosensitive recording sheet including a support, a thermosensitive color developing layer over one surface of the support, a release layer over the thermosensitive color developing layer, and an adhesive layer over an opposite surface of the support, the linerless thermosensitive recording sheet being wound in roll shape in a manner that the adhesive layer comes to an internal side of the support, wherein a peel force for peeling the linerless thermosensitive recording sheet from the roll is 50 mN/50 mm or greater but 250 mN/50 mm or less, wherein a water content of the linerless thermosensitive recording sheet is 4.5% or higher but 6.5% or lower, the roll of the linerless thermosensitive recording sheet being seal-packaged in the linerless thermosensitive recording body package.

First claim

The invention claimed is:

1. A linerless thermosensitive recording body package comprising
a roll of a linerless thermosensitive recording sheet,
the roll of the linerless thermosensitive recording sheet being packaged in the linerless thermosensitive recording body package,
wherein the linerless thermosensitive recording sheet comprises:
a support;
a thermosensitive color developing layer provided over one surface of the support;
a release layer over the thermosensitive color developing layer; and
an adhesive layer provided over an opposite surface of the support,
wherein the linerless thermosensitive recording sheet is wound in a roll shape in a manner that the adhesive layer comes to an internal side of the support,
wherein a peel force for peeling the linerless thermosensitive recording sheet from the roll is 50 mN/50 mm or greater but 250 mN/50 mm or less,
wherein a water content of the linerless thermosensitive recording sheet is 4.5% or higher but 6.5% or lower, and
wherein the roll of the linerless thermosensitive recording sheet is seal-packaged in the linerless thermosensitive recording body package.

2. The linerless thermosensitive recording body package according to claim 1 ,
wherein the linerless thermosensitive recording sheet further comprises a protective layer between the thermosensitive color developing layer and the release layer.

3. The linerless thermosensitive recording body package according to claim 1 ,
wherein the linerless thermosensitive recording sheet further comprises a back layer between the support and the adhesive layer.

4. The linerless thermosensitive recording body package according to claim 3 ,
wherein the back layer comprises at least any one selected from the group consisting of a styrene-acrylic acid ester copolymer and a styrene-butadiene copolymer.

5. The linerless thermosensitive recording body package according to claim 1 ,
wherein the linerless thermosensitive recording sheet further comprises an undercoat layer between the support and the thermosensitive color developing layer, and
wherein the undercoat layer comprises hollow particles.

6. The linerless thermosensitive recording body package according to claim 1 ,
wherein the roll of the linerless thermosensitive recording sheet is seal-packaged by pillow packaging.

7. The linerless thermosensitive recording body package according to claim 6 ,
wherein a portion of the roll heat-sealed by the pillow packaging is on a body surface of the roll.

8. The linerless thermosensitive recording body package according to claim 1 ,
wherein one roll of the linerless thermosensitive recording sheet is individually packaged in the linerless thermosensitive recording body package.

Assignees

• Kitano Tohru
• Kakuda Tomohisa
• Matsui Hiroaki
• Ricoh Co Ltd

Inventors

• Kitano Tohru
• Kakuda Tomohisa
• Matsui Hiroaki

Classifications

• B41M5/3336

  Sulfur compounds, e.g. sulfones, sulfides, sulfonamides · CPC title

• B41M5/3335

  Compounds containing phenolic or carboxylic acid groups or metal salts thereof · CPC title

• B41M5/3275

  Fluoran compounds · CPC title

• B41M5/30

  using chemical colour formers (B41M5/34 takes precedence) · CPC title

• B41M5/443

  Silicon-containing polymers, e.g. silicones, siloxanes · CPC title