JPS627502A - Surface decoloring regenerating method of fouled building material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] → Industrial use division Kempo is used for building houses with pillars, lintels, etc., and wooden doors.

Fittings such as shoji doors, ceiling panels, etc. that are made of unpainted wood without special paint on their surfaces usually discolor over time and become stained in spots, but these can be cleaned to make them as new as possible. This is an attempt to provide an appropriate rehabilitation method when attempting to rehabilitate the wind.

→ Conventional technology When it is desired to rehabilitate building material fabrics as described above, the general method is to wash them with a warm cloth or soapy water and wipe them thoroughly.

Problems to be Solved by the Invention There have been complaints that mere cleaning using conventional methods cannot restore the surface of the wood to its original state of plain wood, even though some dirt may be removed. Even in such cases, we aim to provide a construction method that restores buildings to their original plain wood-like appearance without making a difference, by applying an appropriate chemical solution and wiping process depending on the type of building materials used and the degree of contamination. Monode &, 60
.

→ Solutions to Problems, Actions, and Examples Building materials for houses constructed with plain wood may be damaged due to conditions such as aging, the material of the building material itself, sunlight exposure, etc., or partial stains, etc. The degree of contamination varies.

Therefore, the concentration of the liquid used in this method, whose main processes are chemical application and wiping, is naturally not uniform, but the standard concentration of the liquid used in construction and the specific remediation steps will be described.

That is.

(1) Remove dust from the surface of building materials to be rehabilitated using an appropriate method.

(2) The alkaline solution contains 1 part by volume of caustic soda.
Brush the surface of the target building material with a diluted solution of 60 parts water. This brushing is done according to the grain of the wood so as not to cross the grain of the wood.

(3) While the above brushing is still wet, use a scrub brush to completely remove any dirt that stands out. It should be noted that this removal process should be carried out slowly over time, or if it is carried out quickly by father and son, depending on the condition of the forest to be rehabilitated.

(4) Furthermore, wash the surface of the building material with water and wipe it with a cloth.

(5) Brush a bleach solution in a volume ratio of 1 part bleach to 1 part water.

(6) Wash the surface again with water and wipe it with a cloth.

(7) A dilute solution of 1 part phosphoric acid and 40 parts water (same volume ratio) is applied to the acidic solution used as a remover for the alkaline solution used in step (2) to completely neutralize the alkaline content.

(8) As the final construction step, rinse with water and wipe thoroughly with a cloth.

When constructed in this way, even aged building materials can be renovated to almost the original state of plain wood. Depending on the location of the target material, the shoji maker may remove the paper and perform the process later.
Other pillars and door wainscoting.

This method will be applied not only to the lintel, ceiling, etc., but also to their locations. ;p
＞ *"qo'a" 1 The aged and electrified wood surface according to the present invention is first eluted with an alkaline solution, and then whitened with a bleaching solution, and the applied alkaline content is completely neutralized with a rice solution, and between them Through proper washing with water and thorough wiping, the effect of reducing the wood to a plain wood condition can be achieved to a surprising extent, which cannot be achieved by simply washing with water or using only soap detergent. The construction of this process is truly remarkable.

Furthermore, as a special case of the 9-method, it can be applied not only to whitening using plain wood, but also to the decolorization and rehabilitation of tatami surfaces that have been discolored due to 9-day baking, etc., and has a remarkable effect.

[Brief explanation of drawings]

No drawing attached

Claims (1)

[Claims] 1. After applying an alkaline diluent according to the grain of the wood to the surface of unpainted unpainted building materials that have been used for construction, apply the alkaline diluent according to the wood grain of the wood surface, and then apply it while the wood is still dry. Next, apply a bleach solution to bleach the wood, and after wiping it off, apply a diluted acidic solution to completely neutralize the initial alkaline content, and then finish by wiping and polishing the wood back to its original state. A surface decolorization rehabilitation method for soiled building materials, which is characterized by carrying out a rehabilitation process.