JP2005261736A - Easy-to-peel paste and roll papers using the paste - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide easy-to-peel paste suited to the difference of thickness, basic weight and surface shapes such as embossment to be used for toilet paper and paper towels, etc., wound in a roll shape, and the toilet paper or the paper towel using the paste. <P>SOLUTION: In paper kinds wound in the roll shape, to which tail sealing is executed, glycerol of 0.1-10% to the entire weight of the sealing paste of the tail sealing or polyalkylene glycol whose average molecular weight is equal to or less than 2,000 or its derivative is added to the sealing paste as a release adjustor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a glue that can be easily peeled off and roll papers such as toilet paper that are glued to a tail part and a winding start part of the roll paper using the glue.

Toilet paper and paper towel wound in a roll form are glued at the tail portion (end of winding) and the start portion of winding.
The feature of this glue is that it has excellent initial adhesiveness, and when used by a consumer, the tail seal (glue at the end of the winding) is peeled off smoothly.
Further, in toilet paper having good absorbability, the penetration of glue into sheets other than the sheet coated with glue is as small as possible.
This glue is prepared and marketed for industrial use, but the gluing strength differs depending on the paper thickness, basis weight, and surface shape of the embossed toilet paper or paper towel. The adhesive strength of glue can be controlled to some extent by the amount of glue applied and the concentration of active ingredients, but it affects operability and quality because the permeability and drying speed of the glue change.
In other words, when the amount of glue applied is large, the tail portion is easily rubbed and peeled off on the conveyor. Moreover, when the paste permeates too much, the lower layer sheet is torn when peeled off.

Japanese Utility Model Publication No. 61-95389 JP 2000-229046 A

  It is an object of the present invention to provide an easily peelable paste suitable for differences in surface shape such as thickness, basis weight, embossing, and the like, and toilet paper or paper towel using the paste, which are used for toilet paper or paper towel wound in a roll.

  The present invention uses starch, polyvinyl alcohol, carboxymethylcellulose alone or a mixture of two or three kinds as a main component (a component occupying 10% or more of all active ingredients), and the total weight as a release regulator. The present invention relates to a paste in which 0.1% to 10% glycerin or a polyalkylene glycol having an average molecular weight of 2000 or less or a derivative thereof is added, and a rolled tissue paper in which the paste is used for starting winding and / or tail sealing.

When using 0.1 to 10% by weight of glycerin or polyalkylene glycol having an average molecular weight of 2000 or less or its derivatives in a commercially available glue for use as a seal paste for the tail (end of roll) of toilet paper or paper towel It is recognized that the seal peels off smoothly, and it is excellent in the effect as a peeling adjusting agent for glue.
This is considered to be due to the effect of the above-described release adjusting agent, by keeping a small amount of water in the paste even after the paste is dried, an appropriate dry state is maintained and the adhesive surface is easily peeled off.

  Examples of the present invention are shown below, but these are given for illustrative purposes and do not limit the present invention.

Glycerin or polyethylene glycol (average molecular weight 1000) is added to a commercially available glue 0.5, 1, 2, 5, 10% to glue, and the glue of the example is prepared and used as a tail seal glue. Two-ply toilet paper (Scotty fragrance) ) Was applied to 0.5 g.
As a comparative example, a commercially available glue was evaluated for permeability, initial adhesion, ease of peeling, and dry peel strength. The results are shown in Tables 1 and 2.

Initial adhesiveness: The roll immediately after tail sealing was evaluated by measuring the distance of 1 m and peeling off the tail seal portion.
○: No peeling △: Partial peeling ×: Full peeling

Ease of peeling: The tail seal was peeled off, and the second sheet was evaluated for damage.
○: No damage △: Partially damaged but no problem in use ×: Second sheet cannot be used

Dry peel strength: After tail sealing, it was allowed to stand at room temperature for 48 hours, and after confirming that the glue in the tail seal part was completely dried, a 180 degree peel test was conducted with a Tensilon universal testing machine.

Pulling speed: 300mm x min
Test piece: 150 x 114 mm

Claims (6)

In papers rolled into a roll with a tail seal, 0.1% to 10% glycerin or an average molecular weight of 2000 or less as a release adjusting agent for the seal paste of the tail seal with respect to the total weight of the seal paste A roll paper characterized by adding alkylene glycol or a derivative thereof. The roll-shaped paper according to claim 1, wherein the seal paste is mainly composed of starch, polyvinyl alcohol or carboxymethyl cellulose, each alone or a mixture of two or three. The rolled paper according to claim 1 or 2, wherein the rolled paper is toilet paper or paper towel. The rolled paper according to any one of claims 1 to 3, wherein a seal paste is applied to a winding start portion of the rolled paper. Starch, polyvinyl alcohol, carboxymethyl cellulose, or a mixture of two or three types as a main component, and 0.1% to 10% glycerin or polyalkylene having an average molecular weight of 2000 or less based on the total weight as a release modifier. An easily peelable paste characterized by adding glycol or a derivative thereof. The easily peelable paste according to claim 5, which is used for a tail portion and / or a winding start portion of toilet paper or paper towel wound in a roll.