US2131330A - Method of making "urushi" or japanese lacquer films having pictures or letters - Google Patents

Description

Patented Sept. 27, 1938 UNHTED STATES PATENT OFFICE METHOD 0F MAKING "UR-USHI OR JAPA- NESE LACQUER. FILMS HAVING PICTURES OR LETTERS Akinari Ozawa, Omorl-ku, Tokyo, Japan, as-

signor to Hikari Shoji- Kabushiki Kaisha,

Tokyo, Japan 3 Claims.

The present invention relates to a method of making a Urushi or Japanese lacquer film with a picture or letters painted thereon, which consists in firstly painting a picture, figure, design or letters or their combination with desired Urushi or Japanese lacquer on the surface of a cellulose film or plate, for example, films of nitrocellulose, acetylcellulose or regenerated cellulose and then after drying said surface, applying the Japanese lacquer to it one or more times to form a lacquer film and peeling ofi such film after drying the surface again. The object thereof is to produce by simple means a lacquer film having a picture or letters which can be utilized effectively for various artistic, technological and building purposes.

According to the present invention, a. desired Urushi" or Japanese lacquer film with a picture may be produced if a thin layer of vegetable oil is formed to facilitate the application of a lacquer solution to the smooth surface of the above cellulose film or plate aswell as the peeling off of the coating lacquer film and then painting and coating are eifected with a desired lacquer solution and the film is peeled oif after drying by the ordinary process. I

The Urushi" or Japanese lacquer solutions employed in the present invention are Ki- Urushi" (raw Japanese lacquer), Seshlme Urushi (raw lacquer obtained fromtwigs of Rhus vernicz'fera D.), black colored Japanese lacquer and other treated Japanese lacquers, aventurine Japanese lacquer and under-coating Japanese lacquer. They are applied one or more times according to the picture and design to be painted and the thickness of a desired film. The thickness of the film is to be increased with each application of the solutions. Especially, if Urushi" like aventurine Japanese lacquer is employed for an intermediate layer, it is possible to obtain a thick film without many attempts.

In this invention, a desired Urushi or Japanese lacquer film may be produced also by spraying instead of applying a lacquer solution.

The following is an example of carrying out this invention into practice:

With a piece of cloth soaked in vegetable oil such as rape seed oil, rub a viscose film stretched on a frame, and alter .thus covering said film with a thin layer of oil, paint thereon a picture, design or letters or their combination with a desired colored lacquer. Next, alter drying it,

apply a Japanese lacquer solution toy is surface several times to form a lacquer film. Then, leave it alone in the atmosphere, and the film will dry in about one day and night as it retains the desired picture, design or letters. Finally, peel oil the lacquer layer by cutting one edge, and the desired lacquer film with a picture will be obtained.

In the present invention, even if the cellulose film or plate has a fiat or curved face, a lacquer film with a picture may be produced similarly. Also, a product of a desired thickness may-be had at will according to the number of the times of the application of the solution. It is very tough, and as one does not stick to the other, it may be stored in a pile.

The product according to this invention may be utilized efiectively as the material for industrial art works or building. Further, pictures, designs and letters may be produced to express one's taste or in mosaic because of the peculiar nature of the Japanese lacquer. Also, the lacquer film if pasted may take the place of lacquer painting.

I claim:

1. Method 01' making a "Urushi" or Japanese lacquer film having a picture thereon, which consists in firstly painting a picture, design, figures or letters 'or their combination on a cellulose film with desired Japanese lacquer, applying a lacquer solution'to the surface of said film one or more times to form a lacquer film and then after drying the film. peeling it ofl.

2. Method of making a "Urushi" or Japanese lacquer film having a picture thereon, which consists in forming an oil layer previously on a cellulose film by applying vegetable oil to the latter, painting a picture, design, figures or letters or their combination thereon with a desired Japanese lacquer solution, and after drying it, applying the lacquer solution one or more times to form a lacquer film and then after drying said film, peeling it 01!.

3. Method of making a Urushi" or Japanese lacquer film having a picture thereon, which consists in painting a picture, design, figures or letters or their combination on a cellulose film with a desired Japanese lacquer solution, forming a lacquer film by spraying the solution on the suriace of said cellulose'film and alter drying said lacquer film, peeling it oil.

' AKINARI OZAWA.