Common misunderstandings and solutions in the selection of printing and dyeing auxiliaries

2022-07-06 09:33:35

There are many misunderstandings in the selection of additives in most enterprises, mainly in the following four aspects.

common problem:

Pay attention to solid content and ignore physical and chemical analysis

Expert advice: many auxiliary users attach great importance to solid content and take the combination of content and unit price as the basis for selection. In fact, it is very unwise to do so. Physical and chemical analysis is the basis for checking the quality of additives, and the solid content is only one of them.

After a comprehensive physical and chemical analysis, a large sample trial is carried out, and the solid content is determined after the preliminary determination, which is the basis for checking the batch quality of the additive.

common problem:

Pay attention to unit price and ignore comprehensive cost

Expert advice: due to the fierce competition and the huge cost pressure, many printing and dyeing factories attach great importance to the unit price of additives, but the unit production cost is very general, and the comprehensive unit cost of dosage, efficiency, rework, repair, etc. is not taken into account. At present, the competition of additives is also very fierce. Under the pressure of raw material cost, it is difficult to achieve high quality and low price.

Price comparison under the same quality and quantity, or quality comparison under the same unit cost; Combined with the actual energy consumption, production efficiency, process quality stability, etc., calculate the unit comprehensive cost; More importantly, the actual unit cost should be calculated on a monthly basis to prevent the seemingly low calculation cost and the high actual cost.

common problem:

Attach importance to quickness and convenience and ignore long-term stability

Expert advice: textile printing and dyeing factories require zero inventory and fast delivery of additives, which seems to be very scientific, but in fact it is too harsh; Because each auxiliary manufacturer has its own strong products, and most auxiliary manufacturers are difficult to get close to textile printing and dyeing plants, plus the timeliness of auxiliary production, it is necessary, reasonable and scientific for printing and dyeing plants to prepare a week's inventory.

In a week's time, transportation across the country is not a problem, and printing and dyeing plants will also choose more excellent and stable additives.

common problem:

Attach importance to the role of teachers and ignore objective comparison

Expert advice: This is very prominent in some experience based enterprises. The managers (or Masters) of the enterprises will use some additives and processes according to their own experience and habits and refuse other products; In addition to being driven in part by interests, this is more limited by the lack of their own knowledge and technology. They are unable to distinguish the advantages and disadvantages of additives and dare not use new additives. This is most prominent in low-end bleaching and dyeing, washing and dyeing, denim and other industries, which is easy to cause long-term problems such as environmental protection standards, large batch difference, unstable quality, high actual cost, and difficulties in new product development.

Washing and dyeing is a process in pastels and a way of coloring First make the glass white, and then wash and dye it. Washing and dyeing on the filled glass white can make the painted figure clothing lines or flowers contain powder and the coloring has a sense of depth change. Generally, the colors used for washing include magenta, net yellow, net bitter green, net big green, eggplant purple, guangcui, thin blue, etc., and magenta is the most. There are two kinds of washing and dyeing, oil washing and water washing, each with different techniques and characteristics. Oil washing is easy to master, and the colors are fine and neat, which can unify most pictures, especially when used in mass production, this method is mostly used. The water washing method is fast, the effect is vivid and lasting, but it is not easy to master, so it has not been widely promoted.