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2009-05- 18 13:50:06
The application number is CN 2004 10060757.6.
Publication number CN 1597802A
After searching, we learned that some reports of plastic ink thinner were published in the open literature. Such as China patent 03114183 < The aromatic ink thinner has the following components and contents:
50-70% of at least one of toluene, xylene and pure benzene.
120 #+5%-30% of at least one of gasoline, methanol, ethanol, mixed propanol and butanol.
5-30% of at least one of butyl ester, ethyl ester, butyl acetate and ethyl acetate.
5-20% of at least one of cyclohexanone, ethylene glycol ether acetate, acetone, butanone and white water.
All percentages are by weight. The composition of the invention is evenly mixed by conventional methods, such as adding all the components into a container according to the required content and stirring and mixing evenly.
The main components of the ink thinner reported in the above-mentioned public documents contain toxic benzene and its compounds. Although this kind of ink thinner has stable dilution effect, high volatility and solubility and low production cost, its raw materials contain toxic substances such as benzene or benzene series, so its specific use and pertinence are not emphasized. If it is used in food processing, it will do harm to human health and pollute the environment.
Summary of the invention
In the long-term work practice and scientific research, after many years of basic research, a large number of experiments and a large number of data analysis, on the basis of making full use of the existing ink thinner technology platform, the inventor studied the non-toxic formula of plastic ink thinner, overcame the technical problem of benzene poisoning caused by adding toxic substance benzene and its derivatives into ink thinner, and put forward a benzene-free plastic ink thinner, replacing benzene and its derivatives in ink thinner with other substances with low price and good dilution effect.
The purpose of the invention is to provide a plastic ink thinner which does not contain benzene and its derivatives. The diluent avoids and eliminates the poisoning of benzene or its derivatives, and has the advantages of good dilution effect, high volatility and solubility, low production cost, wide application range, wide source of raw materials, low price, fragrant smell and the like.
The technical scheme of the invention is realized as follows:
The diluent for benzene-free plastic ink consists of hydrocarbon solvent, turpentine, ethyl acetate, n-propyl acetate and butyl acetate, and its components and volume percentages are as follows:
Turpentine 2- 15%
20-40% ethyl acetate
N-propyl acetate 1- 10%
Butyl acetate 1-5%
Residual hydrocarbon solvent
The hydrocarbon solvent is 90 # gasoline, 93 # gasoline or 97 # gasoline, or their mixture; Turpentine was chosen as a superior product.
The hydrocarbon solvent is used to dilute and reduce the viscosity of the resin, so that the resin has fluidity; Turpentine has good compatibility with resin, which makes the ink smoother and more fragrant. Ethyl acetate is also a solvent for paint, artificial tanning, etc. It is also the raw material for basic organic synthesis of drugs, dyes and spices. Adding ethyl acetate can make the ink thinner have better compatibility with various resins, hydrocarbon solvents and lower alcohols, and its volatilization speed can be adjusted; N-propyl acetate is a mild quick-drying agent, which can be used as flexographic printing ink and gravure printing ink, especially for polyolefin and polyamide film printing. Butyl acetate is an important perfume, which naturally exists in apples, bananas, pears and other fruits and has a strong banana flavor. It is an edible spice allowed by GB2760-86, which is used to prepare fruit essence. At the same time, it is also a raw material and an excellent organic solvent for chemical, pharmaceutical and biological industries. On the one hand, butyl acetate used in the invention is used for dissolving resin, and on the other hand, the diluent has a strong fragrance.
Compared with the prior art, the biggest difference of the benzene-free plastic ink diluent composition of the invention is that hydrocarbon solvents with lower prices, especially 90# gasoline or 93# gasoline or 97# gasoline, turpentine and ethyl acetate are used as main raw materials to replace benzene or benzene derivatives, thus solving the technical problem of benzene poisoning caused by benzene and its derivatives and achieving the effects of good dilution effect, high volatility and solubility.
The production method of the invention comprises the following steps: weighing each diluent composition according to the amount, putting it into a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing. Before use, directly put it in ink and stir it evenly.
The diluent composition of the invention can be used for printing plastics, and can also be used as a diluent for printing books and newspaper ink.
expand on
Example 1
No.90 gasoline, 68 liters
Turpentine 10L
Ethyl acetate 20 liters
N-propyl acetate 1L
Butyl acetate 1 l
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 2
No.93 gasoline 55 liters
Turpentine 12 liter
Ethyl acetate 25 liters
N-propyl acetate 6 liters
Butyl acetate 2 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 3
No.97 gasoline, 52 liters
Turpentine 8 liters
Ethyl acetate 30 liters
N-propyl acetate 9 liters
Butyl acetate 1 l
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 4
40 liters of 90 # gasoline
Turpentine 7 liters
Ethyl acetate 40 liters
N-propyl acetate 8 liters
Butyl acetate 5 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 5
No.90 gasoline, 35 liters
Turpentine 15 liter
Ethyl acetate 37 liters
N-propyl acetate 10L
Butyl acetate 3 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 6
No.93 gasoline, 52 liters
Turpentine 5 liters
Ethyl acetate 35 liters
N-propyl acetate 4 liters
Butyl acetate 4 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 7
65 liters of No.97 gasoline
Turpentine 3 liters
Ethyl acetate 22 liters
N-propyl acetate 8 liters
Butyl acetate 2 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 8
No.90 gasoline 78 liters
Turpentine 2 liters
Ethyl acetate 18L
N-propyl acetate 1L
Butyl acetate 1 l
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 9
No.97 gasoline 54 liters
Turpentine 6 liters
Ethyl acetate 35 liters
N-propyl acetate 2 liters
Butyl acetate 3 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
Example 10
97 # gasoline 48 liters
Turpentine 4 liters
Ethyl acetate 34 liters
N-propyl acetate 10L
Butyl acetate 4 liters
Weighing, placing in a stainless steel or ceramic container, uniformly mixing at normal temperature and pressure, and sealing to obtain the product.
The following is the determination of technical parameters of the product of the invention:
The product of this invention has been tested by provincial and municipal technical supervision departments, and its physical and chemical indexes of technical parameters are qualified.
At present, the product of this invention has been tried by five plastic color printing companies such as Nanning Yongning Plastic Color Printing Packaging Factory and Nanning Color Printing Packaging Co., Ltd., and the printing effect is the same as that of benzene thinner, with excellent fragrance and no toxicity, which ensures the health of printing workers.
Source of formula: coating China website:. Source: Paint China Original Reference:. net/formula/coat cn _ net _ 16669 . shtml。