CN1078430A

CN1078430A - Marble and granite graph and text etching process

Info

Publication number: CN1078430A
Application number: CN 93102049
Authority: CN
Inventors: 万冬英
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-23
Filing date: 1993-02-23
Publication date: 1993-11-17

Abstract

The invention provides a picture and text etching process for marble and granite, belonging to the manufacture of artistic articles. It includes establishing protective layer, negative preparation, corrosive liquid corrosion, pigment filling on marble and granite, and its characteristic: the corrosion of marble comprises hydrochloric acid, hydrofluoric acid, water and additives; the granite corrosive liquid contains nitric acid, hydrochloric acid and hydrofluoric acid. The invention has the following advantages: the process is simple, the manufacturing speed is high, and large-scale industrial production can be realized; better solves the problems of side corrosion and SiO in chemical corrosion₂The defect of corrosion resistance, and the lines of the manufactured calligraphy and painting are clear; the problems of slow corrosion speed and difficult corrosion of the granite are solved; the product can be widely applied to decoration of hotels and families.

Description

Marble and granite picture and text etching technics

The invention provides a kind of etching technics of natural stone, specifically, is a kind of marble and granite picture and text etching technics.

Since ancient times, high stability reason, voltinism energy that people have just utilized ore bodies such as natural marble, granite to have are carved drawing case, literature appreciation and the permanent recording as art on its plane, and are used for the decoration of building in a large number.In today that economy, culture and living standard improve rapidly, the handicraft of lithotome finds oneself greatly elevated in fame and status especially.Up to now, the stone inscription craftsman is continuing to use iron hammer and the stone inscription cutter is carved the civilian backward technology of drawing on the slabstone that polishes, so that noise fills ear in the workshop, and Mars flies to spout, and dust fills the air.Yet, although for skillful craftsman's hand still difficulty carve fine and smooth bright and clean work and consuming time very long, efficient is very low, What is more, craftsman suck a large amount of dust year in year out and cause the concurrent pulmonary tuberculosis of silicosis, the injury health does not often reach the middle age and dies young.Chinese patent CN87103172A discloses a kind of " chemolysis of calligraphy etching and method on the granite " by name, but the dissolving etching cycle is longer, generally more than at least 10 hours, thereby efficient is low, not can manufacture, and cost is also higher, to hachure with require calligraphy and painting more clearly, can't carry out; Chinese patent CN1063078A discloses a kind of " technology of marble and calligraphy etching on glass ", it is characterized in that it being to adopt silk screen stencil printing technology that calligraphy and painting is implanted in marble or on glass, achieve the goal with hydrochloric acid etching on marble then, its shortcoming is: extent of corrosion is difficult for grasping, easily cause the side corrosion, and the SiO to containing in the marble ₂Can not corrode, can not calligraphy etching to granite.

The object of the present invention is to provide a kind of chemical attack, can produce in enormous quantities, manufacturing speed is fast, all can calligraphy etching and etching marble and granitic picture and text etching technics completely to marble and granite.

For achieving the above object, the present invention adopts following technical scheme: processing step such as it comprises negative film making, sets up protective layer, the filling of corrosive liquid burn into pigment, it is characterized in that: the corrosive liquid of marble picture and text etching technics comprises hydrochloric acid, hydrofluoric acid, water and additive, its weight ratio hydrochloric acid 5-10%, hydrofluoric acid 1-5%, additive 0.5-1%, water surplus; Above-mentioned additive is the emulsion form mixture of laundry soap, vegetable oil, water, and its weight proportion is 100-120: 80-100: 450-550, and laundry soap is commercially available laundry soap, and vegetable oil can be rapeseed oil, tea oil, cottonseed oil, castor-oil plant wet goods.The corrosive liquid of granite picture and text etching technics comprises nitric acid, hydrochloric acid, hydrofluoric acid, and its equivalent proportion is: nitric acid: hydrochloric acid: hydrofluoric acid=5: 10: 1-5.The content of hydrofluoric acid is with SiO in the former stone in more than filling a prescription ₂Content and decide.

Above-mentioned protective layer adopts sets up light-sensitive surface or coverings such as serigraphy acid-proof ink, coating on marble or granite; The making of light-sensitive surface protective layer takes slabstone to clean, and steps such as light-sensitive surface coating, the exposure of upper shield egative film, development, post bake, cleaning form; Photoresists are the dichromic acid photosensitive liquid.

The present invention compared with prior art has following advantage:

1, technology is simple, manufacturing speed is fast, can form mass industrialized production;

2, solved side corrosion and the SiO in the chemical attack preferably ₂The shortcoming that can not corrode, the calligraphy and painting svelteness of making;

3, solve granitic corrosion rate and reached uncorruptible problem slowly.

The invention will be further described below in conjunction with embodiment:

One, negative film making:

By hand the teletext book is plotted on the transparent or semitransparent paper, is made for the egative film of setting up image or utilizes apparatuses such as camera, duplicator, slide projector, projecting apparatus to carry out means making egative films such as reproduction, convergent-divergent and dark place stunt.

Two, set up protective layer, divide following two kinds of methods:

1; the light-sensitive surface protective layer: slabstone is after cleaning agent is removed greasy dirt fully; utilize manual spreading or the centrifuge gluing; after hair dryer or the oven dry of other drying plant; the egative film that makes in advance in the indoor covering that does not have high light is also used the glass compacting; at distance 60CM; the iodine-tungsten lamp of power 1000W is 15 minutes (correct time is decided on the egative film thickness) of irradiation down; use 50-60 ℃ of warm water washing 3 minutes immediately; 5% crystal violet solution developed about 1 minute; 5% chromic acid solution post bake 15-30 second, after doing again in irradiation under sunlight or the iodine-tungsten lamp more than 1 hour, so far; full operation finishes, and can enter the corrosion stage.

2, printing protective layer: with the silk screen version acid-proof ink, coating etc. is printed onto slabstone and gets on to form the picture and text diaphragm, concrete manufacturing process is as follows:

A: the making of silk screen version:

With the nylon mesh more than 120 orders be tightened in wooden or metal framework on;

B: set up the light-sensitive surface figure:

With the greasy dirt on the cleaning agent removing silk screen, dry surplus water behind the water cleaning down, dip in photoresists at the even blade coating in silk screen two sides with rubber flap, doing the back shone 15-30 minute through iodine-tungsten lamp thereon with egative film, then with 50-60 ℃ of warm water washing, 5% crystal violet solution developed about 1 minute, used for 5% chromic acid solution post bake 15-30 second again, just can send to press behind the flushing airing; Half tone is loaded onto the wire mark machine, roll on printing ink after reserving the relative position of slabstone and half tone picture and text, to space of a whole page wiper, it is very clear with the picture and text of printing ink as protective layer just to have formed on the slabstone with lucite, just can corrode after doing.

Above-mentioned photoresists are the dichromic acid photosensitive liquid.

Three, corrosion:

Marmorean corrosive liquid comprises hydrochloric acid, hydrofluoric acid, water and additive, and its weight content is: hydrochloric acid 5-10%, hydrofluoric acid 1-5%, additive 0.5-1%, water surplus; Additive is the emulsion form mixture of laundry soap, vegetable oil, water, and its prescription comprises: laundry soap, vegetable oil, vegetable oil, water, its weight proportion are 100-200: 80-100: 450-550, and its optimum formula is:

Corrosive liquid: hydrochloric acid (40%) 160ml, hydrofluoric acid (38%) 20ml, additive 6ml, water 1000ml, the best proportioning of additive is: laundry soap 100g, rapeseed oil 100ml, water 500ml; Wherein the adding of hydrochloric acid, additive is decided on the corrosion situation, and hydrochloric acid 5-10% is a bound, and additive is bound with 0.5-1%, and the adding of hydrofluoric acid is by SiO in the marble ₂Content and deciding is bound with 1-5%, and laundry soap is commercially available, and vegetable oil also can be cottonseed oil, tea oil, castor oil or the like.

Granitic corrosive liquid comprises nitric acid, hydrochloric acid, hydrofluoric acid, and its equivalent proportion is: nitric acid: hydrochloric acid: hydrofluoric acid=5: 10: 1-5; Its best equivalent proportioning is a nitric acid: hydrochloric acid: hydrofluoric acid=1: 2: 0.4, the amount of hydrofluoric acid is looked SiO in the granite ₂Content and decide, in general, it is big that the amount ratio marble of hydrofluoric acid is wanted.

The slabstone of setting up the picture and text diaphragm immersed in the corrosive liquid or with etching machine it is corroded with above-mentioned corrosive liquid, the general only need of marble 1-1.5 minute, clear picture just can finish, and the granite etching time is about half an hour.

Four, pigment is filled

According to the required color decision of picture and text.

Claims

1, a kind of marble picture and text etching technics; it comprises negative film making; set up protective layer, the filling of corrosive liquid burn into pigment; it is characterized in that: corrosive liquid comprises hydrochloric acid, hydrofluoric acid, water and additive, and its weight content is: hydrochloric acid 5-10%, hydrofluoric acid 1-5%, additive 0.5-1%, water surplus.

2, marble picture and text etching technics according to claim 1, it is characterized in that: additive is the emulsion form mixture of laundry soap, vegetable oil, water, its prescription comprises: laundry soap, vegetable oil, water, its weight proportion are 100-120: 80-100: 450-550.

3, a kind of granite picture and text etching technics, it comprises negative film making, sets up protective layer, the filling of corrosive liquid burn into pigment, and it is characterized in that: corrosive liquid comprises nitric acid, hydrochloric acid, hydrofluoric acid, and its equivalent proportion is: nitric acid: hydrochloric acid: hydrofluoric acid=5: 10: 1-5.

4, according to claim 1 or 3 described marbles and granite picture and text etching technics, it is characterized in that: protective layer adopts and set up light-sensitive surface or serigraphy acid-proof ink, coating on marble or granite.

5, marble according to claim 4 and granite picture and text etching technics is characterized in that: the making of light-sensitive surface protective layer takes slabstone to clean, and steps such as photoresists coating, the exposure of upper shield egative film, development, post bake, cleaning form.

6, marble according to claim 5 and granite picture and text etching technics, it is characterized in that: photoresists are the dichromic acid photosensitive liquid.