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

Sanitary Thin Paper and Process for Producing the Same

a technology of thin paper and sanitary paper, which is applied in the field of sanitary thin paper, can solve the problems of difficult to find suitable lubricant and unfavorable touch comfort, and achieve the effects of enhancing bulkiness, and reducing friction between fibers

Inactive Publication Date: 2007-10-04
DAIO PAPER CORP
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019] When such a pulp paper is combined externally with a polyester-based compound, a thin film of the polyester can be formed on the surface of the pulp fiber, which serves to reduce the friction between fibers on a superficial layer upon touch to a skin. Accordingly, a resultant sanitary thin paper is porous, moistening, soft, and its surface is smooth.

Problems solved by technology

However, a comfortable texture to the touch can not be obtained if only a softness is imparted but no smoothness is associated.
In order to obtain the “smoothness” by which the texture is affected, it is proposed to add a lubricant, but it is difficult to find a suitable lubricant.

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
  • Sanitary Thin Paper and Process for Producing the Same
  • Sanitary Thin Paper and Process for Producing the Same
  • Sanitary Thin Paper and Process for Producing the Same

Examples

Experimental program
Comparison scheme
Effect test

examples

[0080] Examples of the invention are described below.

[0081] Samples for a tissue paper and a toilet paper were evaluated while comparing between the types of additives added. The results are shown in Table 1. The additives employed were included in Table 1.

[0082] The evaluation was made by measuring an MIU value related to the friction coefficient using a KES test machine manufactured by KATO TECH CO., LTD. A smaller value reflects a smoother texture.

[0083] Also under an electron microscope observation, the fiber fluffiness on the surface of the paper was observed, since only MIU values are insufficient for the evaluation.

[Table 1]

[0084] Based on these results, an inventive product was evaluated in a sensory test to be excellent both in terms of “softness” and “smoothness”. A total fluff length of 0.1 mm or longer and a large total number of fluffs of 0.1 mm or longer, as observed here, reflect a higher smoothness. This is because of the presence of a large number of long fluff...

example 2

[0085] A commercially available tissue paper and an inventive tissue paper were compared in various profiles. Each was tested as a 2-ply (two sheets make a unit) sample. The results are shown in Table 2.

[0086] The softener employed here are listed below. The results are shown in Table 2.

[0087] The softener employed here are listed below. Softener A: Nonionic fatty acid ester (NIPPON PMC, SFS1001) Softener B: Cationic fatty acid ester (NIPPON PMC, SFS1002) Softener C: Cationic fatty acid ester (NIPPON PMC, SFS1004) Softener D: Cationic fatty acid amide (NOF, bulk agent J)

[0088] The sensory test was on the basis of 5-point evaluation. A % void area and a % fiber number were measured by stacking 6 samples whose top and bottom were covered with OHP sheets, which was cut by a sharp shaving blade at an angle of 90°, and the sectional view of a sample after cutting was taken as a ×1000 SEM photograph, which was then evaluated.

[Table 2]

[0089] Based on these results, an inventive produc...

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
distanceaaaaaaaaaa
Login to View More

Abstract

A sanitary thin paper is provided which has an excellent pliability together with an excellent smoothness. Such a paper can be obtained by incorporating a fatty acid ester-based compound and a fatty acid amide-based compound internally and / or externally.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a sanitary thin paper for example for a domestic use and a for producing the same, and provides a particularly soft and smooth sanitary thin paper, including tissue paper or toilet paper. BACKGROUND OF THE INVENTION [0002] In response to a recent change in life style, a trend toward a soft and smooth sanitary thin paper becomes apparent in consumers. Especially in the field of tissue paper, such a trend is marked. [0003] In order to ensure a softness, addition of a quaternary ammonium salt is considered to be effective as disclosed in Patent Reference 1. Also as disclosed in Patent Reference 2, a polysiloxane substance is attempted to be added. [0004] However, a comfortable texture to the touch can not be obtained if only a softness is imparted but no smoothness is associated. In order to obtain the “smoothness” by which the texture is affected, it is proposed to add a lubricant, but it is difficult to find a suitable lu...

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(United States)
IPC IPC(8): D21H27/00A47K7/00A47K10/32D21H17/14D21H21/24
CPCA47K2010/3266D21H17/14D21H27/002D21H17/55D21H21/24D21H17/53
Inventor UEHARA, TETSUYASHIMIZU, YOSHINORIONO, HIROSHIHIRASAWA, AKIRAITO, SAEKO
Owner DAIO PAPER CORP
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