Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1992-02-04
1993-09-21
Loney, Donald J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428156, 428153, 428182, 428213, 428261, 428262, 428263, 428265, 428290, 428343, 428346, 428354, 428355, 4285375, 428913, B32B 300
Patent
active
052467627
DESCRIPTION:
BRIEF SUMMARY
FIELD OF ART
The present invention relates to a heat-adhesive paper sheet, which is suitable for use as wallpaper, ceiling paper, or as a liner for plywood, especially as a sliding door, fusuma paper or a paper-sliding screen, shoji paper in a Japanese style house, or as a linear for paintings and calligraphic works, and which can be applied with not only an ordinary iron but also a steam iron.
BACKGROUND OF THE INVENTION
Hitherto, as paper material sheets such as wallpaper, ceiling paper or liner for plywood, especially fusuma paper or shoji paper in a Japanese style house or liner for paintings and calligraphic works, there are known a rewettable fusuma paper or wallpaper having a water-soluble paste as coated and dried thereon, a so-called tacking type adhesive sheet composed of a paper sheet base coated with a release paper via an adhesive therebetween, and a so-called ironing type adhesive sheet.
The above-mentioned water-soluble paste-coated rewettable fusuma paper or wallpaper is prepared by previously coating a water-soluble paste, which is naturally coated to the back surface of said fusuma paper or wallpaper with a brush or roll just before applying the paper to a fusuma or wall, followed by drying the coated paste thereon in the step of forming the fusuma paper or wallpaper. In assuring a smooth and even adherence of the water-soluble paste-coated rewettable fusuma paper or wallpaper to a fusuma or wall, the amount of water to be applied to the paper for rewetting has a great influence on the finished condition. If the amount of water applied thereto is too small, the paper will adhere to the surface of a fusuma or wall before the wrinkles in the paper formed during sticking operation have been stretched out, so that the adhered paper is affixed with wrinkles. On the other hand, if the amount of water applied is too large, the wrinkles formed during the sticking operation could well be stretched but, when the paper base is made of pulp or a similar water-absorbing sheet, the sheet will shrink and draw back the four edges of the sheet before adhesion. As a result, the area of the paper in the finished state is reduced. Fusuma paper that is applied to fusuma in such a way will leave a paperless space between the fusuma paper and the fusuma frame, which is unfavorable. Similarly, the shrunken wallpaper as applied to a wall causes paperless gaps in the paper-to-paper joint area, which are also unfavorable. The amount of water to be applied to a rewettable fusuma paper or wallpaper of the kind varies, depending upon the ambient humidity, so that adjustment of the amount of water to be applied thereto requires high-level of skill.
A so-called tacking type fusuma paper or wallpaper is a means of avoiding the difficult watering process involved in the above-mentioned rewettable fusuma paper or wallpaper. Application of such tacking type fusuma paper or wallpaper to a fusuma or wall is effected by peeling the release paper previously applied to the back surface of the paper so that, with the finish of the sticking operation, the papering of the fusuma or wall is finished. This tacking type fusuma paper or wallpaper has various advantages in that the sticking operation is effected rapidly and that the operating environment is not messy as no water is needed for sticking. However, it has drawbacks in that, since re-sticking is impossible, the stuck paper is often wrinkled and the paper itself is high-priced.
An ordinary ironing type fusuma paper includes a modified type of the above-mentioned rewettable fusuma paper where only the four edges of the paper are dried with a household iron during sticking, and a fusuma paper sheet having a heat-sensitive adhesive laminated or coated on the back surface thereof. The advantages of the former are that the stuck paper hardly wrinkles even if an excess amount of water has been applied to the rewettable fusuma paper, as the peripheral edges of the wetted paper are dried and stuck with an iron. Also the area of the applied paper is not reduced. However, as it nee
REFERENCES:
patent: 4125659 (1978-11-01), Klowak
patent: 4202925 (1980-05-01), Dabroski
Loney Donald J.
Nakamura Seishisho Co., Ltd.
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