marble dyeing has formed industrial chain

"Say natural marble, surfacing in Spanish cream-colored, less than six months after sitting room in white became seriously fade hut." A few days ago, east lake li island village owner came to express the Mr. 2001 the newsroom, brought home "a small piece of marble, let reporters please experts identify once, see if after artificially dyeing. Reporter interviewed concerned professionals, learned that natural marble dyeing is already industry "routine". In order to look good or makes a heftier profit of the marble quotient of reactive dye already "proficient", and they have already formed industrial chain, consumer health behind.

Market marble dyeing phenomenon stone

Reporters in the east part of building materials supermarket recently visited discovered that, the marble marble material price from every square metre 92 yuan to 23000 dollars, name multifarious, what sand Anna cream-colored, Spain cream-colored, India red, Norwegian red, white, sir ShuGua ice, the Venus etc., let dilettante consumer baffled, but in the sale nearly 70% marble inn-keeper claimed to be natural marble. In a sale of the Spanish cream-colored marble, reporter consulting stores is the product of natural marble. "100% natural marble, such as false buy a penalty ten." answer very sure. Reporters asked, heard that natural marble will dyeing, what is this? This name, not eliminate others admit a false, but the essence of natural marble or quarry. A consumer tells a reporter, marble how have so many colors, a see be do color. And the price is very untidy, the same texture marble on the different color became import marble material to eight times, prices will vary. This want to shop at home, because the marble guest restaurant is going to use color is too fake floor.

marble dyeing has formed industrial chain

Natural marble is how to dyeing? Through a person familiar with the phone, journalist and provide a chemical enterprise in hebei shijiazhuang contact, said they were doing marble business, suffer from tonal single, business is not ideal, intendsto cooperate marble dyeing matters. Each other a head of the name beams without reservation, said they generally introduced in accordance with the following process dyed, before being dyed in marble in drying stove first roasted, after 48 hours at room temperature cooling out; Will classics drying and the cooling of the marble put in by after-chroming dyed pool, will, dyed pool into first dyeing namely coarse dye; Then will coarse dye and dries marble add drying stove in the second baking; Then put the cooling of the marble again into dyed pool on the second dyeing namely fine dye; He dyed and confirmed by the cooling of the marble again into the pool of pure dye the third dyed; The essence of dyed and natural drying on the marble surface treatment, and paraffin grinding and cutting into finished products. Ingredients include dye of benzene 2 amine, aniline, sodium chloride, nitric acid manganese etc. As for whether harmful to human body dye, beams, and not to eat into said belly, setup time long it's ok. According to understand, shandong, zhejiang, guangdong, place and many such professional "dyeing".

Learn to identify colored lubricious marble

So, natural marble what harm to human body Slate? Jiangsu qualitative inspect branch related technical personnel told reporters, lately they received some consumers strains suspected dyeing natural marble, test results indicate that the marble material of dyed color in formaldehyde, mercury, lead etc generally content exceeds bid badly. If installation indoors, human body long time of health has certain harm contact. So how to discern dyeing of natural marble? The technical personnel introduces said, dyeing marble color more bright-coloured, but not the nature; Paper in surface scrubbed hard fall, such as color is dyeing marble; The fracture in marble material can be seen at the levels, dyeing penetration Dyeing marble generally USES the rocky is bad, porosity, bibulous rate is high, the marble with percussion method can distinguish, sounds of fake dyeing of marble sound more tedious; Dyeing marble often besmear to add luster, oil waxes are oily be soiled feeling, its rear with micro fire like roast, wax surface loses, reveal original face; Film, although the marble material of high gloss, but film, insufficient strength, light wear easily see have scratch etc.