An Analysis of the Cost and Market of Printing Machines (Part Two)

The water in the ink is easy to evaporate in the summer and freezes easily in winter. Anti-evaporation agents and anti-freezing agents can reduce this tendency. You can use ethylene glycol or glycerin. However, ethylene glycol is slightly toxic. Special attention should be paid to the processing of European and American inks. The recommended amount of anti-evaporation and anti-freeze agent is 3-6%.
Magnesium sulfate is preferably used as the electrolyte, and its double layer stability and solubility are good. Use 1%.

Preservatives and mold inhibitors prevent the growth of bacterial molds in the aqueous phase. At an appropriate temperature, the mold in the ink breeds very rapidly under aerobic and anoxic conditions, resulting in odor and deterioration of the ink. Use less than 1%.

(2) Process production The production process of the printing machine ink is closer to the cosmetic process. The experience of traditional inks is not so advantageous in the printing machine ink. When the ink is made, the oil phase containing the emulsifier is prepared first, and then the aqueous phase is slowly added thereto, and the mixture is stirred under vacuum until the viscosity is reached. Do not mix air when filling ink.

A. The oil phase is prepared by using a selected solvent oil to dissolve the resin to form a binder (this process can be used to chemically modify the resin), adding carbon black (or modified carbon black), additives, emulsifiers, etc., and mixing. Grinding, then stir the oil to adjust to the appropriate viscosity requires the oil phase delicate, uniform, and stable. The fineness of the oil phase is required to be less than 10m at least, preferably less than 5m (but the finer the surface, the finer the surface energy, and the more unstable the ink). We must note that the fineness of the oil phase and the fineness of the emulsion ink are two different things. The fineness of the emulsion ink is the fineness of the latex particles, and the fineness of the oil phase is mainly the fineness of the pigment carbon black. The fineness of the oil phase does not meet the requirements and the ink is particularly prone to water discharge. One of the main reasons for the short shelf life of domestic inks and the widespread availability of water is the inhomogeneity of the oil phase. In the production of ink can be left a small amount of oil phase placed 2 to 6 months, observe whether there is settlement, thickening, conjunctiva, agglomeration, flocculation and other undesirable phenomena.

The equipment for oil phase production is mainly a stirring and dispersing machine. Dispersing equipment is commonly used three-roller, ball mill, sand mill and so on. We hope to use imported equipment to manufacture high-grade ink. Domestic equipment is generally difficult to finely ground, and product fineness is difficult to meet.

B. Emulsification Emulsification is a key to the production of ink in the printer. Require uniform emulsification, no bubbles, the fineness of the latex particles is less than 15u, it is best to emulsify the ink in a vacuum state (In the conventional state, the ink in the ink must be removed, the ink in the ink is thicker, and the static Removing air bubbles is difficult.) The uniformity of the emulsion ink can be burned by picking a little ink, and the sound of burning can be used to judge whether the emulsification is uniform or not. The relatively large blast sound is emulsified unevenly.

C. Inspection The test indicators for inks include viscosity, fineness, blackness, fluidity, environmental protection, quick drying, stability, fluidity, number of printed sheets, and print fastness. Among them, viscosity is the most important indicator. The viscosity can be measured with a rotational viscometer (eg NDJ-79) (different instruments can be used, the values ​​measured by different instruments are different). The viscosity is in the range of 15-30 Pa.S/25°C. Recently, the viscosities of the ideal, Ricoh/Gestner, Depot ink market are basically 20 Pa.S/25°C, and the fluidity is good. The ink requires outer thick inner pine, the ink surface looks thick, the ink does not flow in the printing cylinder, does not drip, does not overflow the ink, does not throw the ink. The interior of the ink is loose, and the ink is easily suctioned from the packaging container. The ink is evenly coated on the roller, and is easy to pass through the wax paper plate, and the printed writing is clear.

Environmental protection is judged by the smell of ink smelling on the nose, and the ink is required to have no odor, no odor, and no irritating odor.

The stability is judged by the cold and heat experiments and the drop of ink on the paper. The ink is alternately placed in a hot and cold environment at -20 to 60°C, and then the viscosity of the ink is measured at room temperature. Observe whether the water is out of thinning or not. Soften, whether slag. Pick a little ink on copy paper or stencil paper. The shape is pagoda shape. After a certain period of time, observe the penetration of the oil ring (the oil ring is allowed to have brown color), the oil ring size is moderate, the ink is cracked, slag, surface Solidification and hardening of the crust, darkening of the color, and other unpleasant phenomena. The good ink basically sees only one oil ring, and the rest remains as it was.

Quick-drying, number of prints, and print fastness are judged by trial printing one or several inks on a printer, usually according to the standard test version carried by the printer itself. Printed parts require clear and unclear handwriting. The back is not dirty, and the writing cannot be erased. The number of printed sheets is close to the original ink.

3, industrial cost analysis Ink industry's pricing rules are: ink raw material cost price is twice the ink factory wholesale price (packages included). For example, the formula cost of ink is 3 yuan/kg, then the ink factory wholesale price is 6 yuan/kg (excluding packaging); the formula cost of ink is 6 yuan/kg, then the ink factory wholesale price is 12 yuan/kg ( Without packaging). According to the overall formulation components introduced above, the formulation cost of domestic inks is currently 3-4 yuan/kg, and the current factory wholesale price of 6-8 yuan/kg is more reasonable. To produce high-grade ink, the main components of the formula use imported materials (such as carbon black, resin, emulsifier, dispersant, etc.), the formula cost is basically 5-7 yuan/kg, and the bulk ink wholesale price is 10-13 yuan. / kg is also appropriate.

The inks made by domestic materials have a gap in the quality of raw materials. In order to be on the safe side, they generally increase the formula ingredients. However, foreign inks have better materials and less formula ingredients. Just like cooking, there are many ingredients for Chinese food and Western foods are simple. In fact, according to comparable prices, the formulation cost of foreign inks is not higher than in China. At present, foreign inks have a high selling price in the market. First, quality is stable, and secondly, they are produced by the printing machines.

4. Market Analysis The speed printer ink is a special supporting office supplies. The market of ink depends on the market of the printer, depending on the market share of the printer and the number of single printers. China's current speed printer market has more than 200,000 units, and the annual demand for ink is about 5000-6000 tons. The market capacity of ink is not large, the breadth is not wide, the depth is not deep, and the industry is narrow.

At present, the quality of imported inks on the market is stable, the quality of domestic products is uneven, and the stability is poor. With the acceleration of information exchange, the transparency of market prices, and the rapid development of the logistics industry, the ink market will certainly be flattened. Unstable product quality and over-excessive brands will inevitably encounter industry reshuffles (any industry will inevitably be attributed to average profits after its maturity). In the industry's shuffling process, the most authoritative person will be the source manufacturer with professional and technical strength (including packaging container manufacturers) and dealers with maintenance service capabilities. They are moderately branded. But work hard on product quality and marketing. As a manufacturer, compatible ink with stable production quality is the prerequisite for survival and development. Regardless of whether you are a high school or a low-end price market, the appropriate stability is definitely a prerequisite. The high school should have stable and good quality. At the low end, it must at least produce no water, no slag, no ink, and ensure the basic normal operation of the printer. High-end ink has a high price, high profit, high technical content, large investment in equipment, but small market share, and low-end ink market share, the overall profit of the two is similar. Whether to choose high school or low, this is a problem for each company. There is no one who is superior or bad, “the market decides everything” and “the market is always right”, and satisfying market needs is fundamental.

"Low cost, high quality" is the eternal theme of global manufacturers. Ink printer ink manufacturers are no exception. "Low cost" is a low cost in the overall sense, including material costs, processing costs, management costs, and marketing costs. It is by no means a simple raw material cost. Domestic companies are most interested in reducing the cost of raw materials, but they must do so on the premise of ensuring basic quality.

Ink sellers should consider choosing a professional manufacturer as a supplier and establish a mutual trust relationship with each other, focusing directly on machine customers and improving maintenance value-added services.

China's market transactions are in turn determined by price, quality and human relations. Grasp the relationship among the three and their respective importance, and seek long-term development in the industry.

5, how to easily identify the user's ink quality A, squeeze a little ink, observe the ink hard and soft, slowly scratch, pay attention to whether there are particles, impurities, bubbles and so on.
B. I smell the smell of ink with my nose and require unpleasant smells, odors, and other unpleasant odors.
C, squeeze a little ink into a pagoda-shaped paper, placed in a dust-free place, about a week to observe whether the oil circle is too large, dark ink loss, surface crust, hard cracking. In addition to the good ink, the ink remains almost as it is.
D. The ink should have a certain length of filaments when picked up, and only a slight "click" sound when burning.
E, rub the ink into the paper, observe the ink is black, and then wipe by hand, the hand is not black.
F. Use the cup to take a little ink and put it in the freezer. After freezing for a few hours (preferably one night), return to room temperature and observe if there is water.

Source of information: pack.cn