Fifteen quality problems in soft finishing?

01 can't reach the feeling

The soft and soft style is different from the requirements of the customer, such as soft, smooth, fluffy, soft, smooth, dry, etc., and different soft agents are selected according to different styles. For example, in the soft tablets, there are soft tablets with different structures, and their softness, fluffyness, slippery, yellowing, and affecting the water absorption of the fabric are different; in silicon oil, the performance of the modified silicon oil of different modified groups is also different. For example, amino silicone oil, hydroxyl silicone oil, epoxy modified silicon oil, carboxyl -altered silicon oil, etc. are different.

02 color turning yellow

Soft slices and amino silicon oil with amino structures are prone to yellowing. In the soft tablets, cations are soft and good, feel good, easy to adsorb on the fabric, but it is easy to yellowish color and affect the hydrophilicity. Improvement, such as compound cation soft tablets with hydrophilic silicone oil, or compounding with hydrophilic finishing agents, its hydrophilicity will improve. Popular ion soft tablets or non -ion soft tablets are not easy to yellow; some soft slices are not yellowed and do not affect hydrophilicity. Amino silicone oil is currently the most widely used silicon oil, but because the amino group will cause color change, the higher the ammonia value, the larger the yellowed, the larger the yellow -deform amin silicon oil or polyether modification, the epoxy modification, etc. Yellow silicone oil.

In addition, when the emulsion aggregates are sometimes used as an emulsifier, such as 1227, 1831, and 1631, these emulsifiers also produce yellowing phenomena. Different emulsifiers are used during silicon oil, and its "color stripping effect" is different, which will cause coloring and light color in different cases; it is already colorful.

03 Faculty hydrophilicity decreases

Generally, the soft tablet structure is used and the water absorption group lacks the water absorption group after the silicon oil film formation, and the hydroxyl groups like cellulose fiber, carboxyl carboxyl, amino groups such as wool, amino groups, etc. The main reason for the dark spots of dark spots is to clean the fabric oil and sewage during the front treatment. During the dyeing, the oil is deep in the oil. The foam drifting oil causes dark oil spots; or the scorberry material in the dye tank is stained on the fabric; or the dyes are condensed in different cases to form a dark colored spots or water quality calcium and magnesium ions. Essence It is necessary to treat it targeted. If the oil removal agent is refined during the previous treatment, the dyeing auxiliary adopts low foam and non -foaming auxiliary agent, and the defoaming agent selects a variety that is not easy to float oil. Anti -dyeing materials are condensed and cleaned the cylinder in time.

04 light stain

The main reason for the light spots is unevenly treated in the front, the hair in some parts is not good, producing a certain rejection, or with rejection of substances, or with calcium soap, magnesium soap, etc. on the front processing, or on the cloth, or Silk light is uneven, or the half -product is not uniformly dry, or the cloth surface is not dissolved with solids such as Yuanming powder, pure alkali, or dripping water before drying, or softened by dyeing. Stain. Similarly, it is necessary to treat it. For example, if the pre -treatment is strengthened, the calcium and magnesium soap must be formed when selecting the auxiliary agent. ), Yuanming powder, pure alkali, etc. must be transformed into the cylinder and must strengthen production management.

05 alkali spots

The main reason for alkaline spots is that the alkali or unevenness of the alkali or uniform after the first treatment (such as bleaching and silk) will cause alkali spots, so the alkali process of the processing process must be strengthened.

06 soft stain

There are about the following causes of soft stains:

(1) The soft tablets are not good, and there are pieces of soft and soft agents adhere to the fabric;

(2) There are too many foaming after the soft sliced material. When the cloth is out of the tank, the soft agent foam stains on the cloth;

(3) Poor water quality and too high hardness. The impurities and soft agents in the water are condensed on the fabric. Some factories use sodium polarized sodium phosphate or alum to treat water. These substances form floccope with impurities in the water, and enter the soft treatment bath to make the cloth surface with spots;

(4) The cloth surface with an ionic substance. When eating soft, it is combined with the ceda soft agent into stains, or the cloth surface is alkaline to condense the soft agent;

(5) Different softener structures, some cause soft agents from emulsified state to slag at higher temperatures to adhere to fabrics, etc.

(6) In the cylinder, there are substances such as caramel -shaped soft agent and other substances.

07 Silicon oil spots

Silicon oil stains are the most difficult type of spots, the main reason:

(1) The pH value of the cloth surface is not neutral, especially with alkali, causing silicone oil to flute oil;

(2) The quality of the bath water is too poor, and the hardness is too high. Silicon oil is easy to float oil in water greater than 15omg/L hardness;

(3) The quality of silicon oil, including lactating (poor choice of emulsifier, poor emulsification technology, too large emulsification particles, etc.), not tolerated shear (mainly silicon oil quality, emulsification system, silicon oil variety, silicone variet Silicon oil synthesis process).

You can choose silicone oil with resistance to cutting, electrolytes, and pH resistance, but pay attention to the use of silicon oil, and you can also consider choosing silicon oil of parental water.

08 is not good

Poor hair is closely related to the operation of the starting machine (such as tension control, roller roller speed, etc.). For the hairy, when the soft agent (commonly known as the wax), the movement of the fabric and the static rubbing coefficient of the fabric is the key, so the hair is soft. The preparation of the agent is the key. If the soft agent is not used well, it will directly cause poor hair, and even cause a broken or door income.

09 formaldehyde problem

Due to the decomposition of formaldehyde in the resin in the resin or the resin of the N-hydroxyl structure, the formaldehyde content is exceeded. Ultra -low formaldehyde resin or non -formaldehyde resin should be adopted.

Of course, the source of formaldehyde is very extensive, such as color solid agent Y, m, soft agent MS-20, S-L, waterproof agent AEG, FTC, binder RF, flame retardant THPC and other assistants sometimes cause excess formaldehyde. At the same time, the formaldehyde migration in the air may also cause the formaldehyde on the fabric to exceed the standard.

10 yellowed or color change problems

After the resin is tidy, it will generally cause yellowing, so the pH value, acid ingredients, and catalyst components of the resin organizer should be controlled to reduce yellowing and color changes as much as possible.

11 The problem of strong decline

Generally, resin arrangement will produce a strong decrease, and fiber protective agents can be added, such as oxidized polyethylene wax emulsification.

12 feel

Generally, resin consolidation will cause the feel of hard work, and it can be added with soft ingredients, but be careful not to affect the quality of resin finishing. The feel has improved, and it has greatly improved the problem of strong decline. However, the problem of hard feel caused by the surface resin is caused by the resin itself and drying, which should be improved targeted.

13 Metal ions exceeded the standard

Metal ions CU, CR, CO, Ni, Zn, HG, AS, PB, CD, etc. need to be tested in export products. If it exceeds the standard, it also has serious consequences like formaldehyde exceeding the standard. In the auxiliary agent, there are fewer metal ions, but some additives will cause exceeding standards, such as flame retardant tritenurtoline dioxide emulsion contains a large amount of mercury, waterproof agent CR, Phobotexcr (CIBA), Cerolc (Shanders), etc. chromium. When using a media dye on the wool spinning, the medium dye used is potassium chromate or sodium chromate or sodium chromate, and CR6+will exceed the standard.

14 color changes

After sorting after menstruation, the color changes are more. This must be paid attention to the choice of dye during dyeing. When dyeing, it must be sorted according to the process.

15APEO over the standard

As an indicator, APEO is also strictly restricted by some countries. This indicator and the precision agent, penetration agent in the pre -processing, cleaning agent, even dyeing agent in the stains, and emulsifiers in the soft agent in the later sorting agent are all related. At present, when the TX and NP series of surface activity are still widely used, it is difficult to prevent the prevention. The only way is to insist on using environmental auxiliary agents to strictly eliminate the additives containing APEO and toxic and harmful substances to enter the factory use.