1. Physical and chemical index Composition: fatty acid amide compound Appearance: yellow flake PH value: 4-5 (10% slurry) Ionicity: cation

2. Application characteristics 1. It is especially suitable for the softness of all kinds of cotton, linen, blended fabrics and knitted fabrics, giving the fabrics good flexibility and resilience. 2. It is suitable for all kinds of denim, washed cloth, woolen sweaters, towels and other textiles to make the fabric soft, fluffy and smooth.

Third, the use of technology 1, padding type: 2-3g / L, temperature 30-40 degrees, two dip two rolling or one dip one rolling. 2. Immersion type: 0.3-0.8% (o.w.f), bath ratio 1: 10-15, temperature 40-50 degrees, 15-30 minutes.

Four, chemical method 1,-cold chemical material: according to the ratio of 5-8%, U2 film is slowly added to about 30 degrees of water under stirring, continue to stir for 3-5 minutes, to disperse, soak for 1-2 hours , Stir it at low speed until it is evenly pulped. 2. Warm chemical compound: Add 5-8% of the soft film to room temperature water under stirring, stir for 3-5 minutes, gradually heat up to 50-60 degrees, continue to stir for 10-15 minutes, until it becomes a uniform slurry spare.

Fifth, packaging and storage 1. The smooth and fluffy film RL-U2 is packed in a 25 kg plastic woven bag; 2. Stored in a cool place with a storage period of 12 months.

Six points to note 1. Please conduct a sample experiment before use. When applying, please combine the equipment and the type of fabric to carry out the optimization process test and select the best process. 2. If it is used together with other softeners or printing and dyeing finishing agents, please conduct compatibility test in advance to achieve the desired purpose.

Common quality problems in soft finishing

One, can't reach the proper feeling:

The soft style of soft finishing varies with customer requirements, such as soft, smooth, fluffy, soft waxy, oily, dry, etc., different softeners are selected according to different styles. For example, soft films with different structures have different softness, bulkiness, slip, yellowing, and influence on fabric water absorption. In silicone oil, the properties of modified silicone oils with different modified genes are also different. Such as amino silicone oil, hydroxy silicone oil, epoxy modified silicone oil, carboxy modified silicone oil and so on have different properties.

Second, the color changes to yellow:

Generally, yellowing is caused by a certain structural film and the amino group in amino silicone oil. In the film, the cationic film has good softness, good hand feeling, and is easy to be adsorbed on the fabric, but it is easy to yellow and change color, which affects the hydrophilicity. If the cationic film is changed to soft olein, its yellowing will be greatly reduced, and the hydrophilicity will also be Improvement, such as compounding cationic soft sheet with hydrophilic silicone oil, or compounding with hydrophilic finishing agent, will improve the hydrophilicity.

Anionic film or non-ionic film is not easy to yellow, and some films do not yellow, nor affect hydrophilicity.

Amino silicone oil is currently the most widely used silicone oil, but it will cause discoloration and yellowing due to amino groups. The higher the ammonia value, the greater the yellowing. It should be changed to low yellowing amino silicone oil or polyether modification, epoxy modification, etc. Yellow silicone oil.

In addition, cationic surfactants such as 1227, 1831, and 1631 are sometimes used as emulsifiers during emulsion polymerization. These emulsifiers also produce yellowing.

The emulsifier used in the emulsification of silicone oil is different, and its "peeling effect" is different, which will cause peeling and light color in different situations, which is already a color change.

Three, dark spots:

The main reason is that the oil stain of the fabric is not removed during the pre-treatment, and the oil stain is dark in color during dyeing; or there is too much foam in the dyeing bath, and the mixture of foam and flower sweater, dye, etc. is stained on the fabric; or the defoamer floats oil to cause a dark color Oil stains; or tar in the dyeing tank stained on the fabric; or dyes condensed under different conditions to form dark stains; or excessive water calcium and magnesium ions combined with the dye and stained on the fabric and other reasons. Targeted treatment, such as adding degreasing agent for refining during pre-treatment, using low-foaming and non-foaming additives as dyeing aids, selecting varieties that are not easy to float oil, adding chelating agents to improve water quality, and dissolving aids To prevent dye agglomeration, use a cleaning agent to clean the cylinder and wash the cylinder in time.

Fourth, the hydrophilicity of the fabric decreases:

Generally, the structure of the film used and the lack of water absorption genes after the film formation of silicone oil, and the closure of water absorption centers such as hydroxy groups of cellulose fibers, carboxyl groups and amino groups on wool, etc. cause a decrease in water absorption. Anionic and non-ionic film should be used as much as possible. And hydrophilic silicone oil.

5. Light spots:

The main reason is that the pre-treatment is uneven, the hair effect of some parts is not good, and it has a certain repellency, or it has a repellent substance, or the cloth contains calcium soap, magnesium soap, etc. or the mercerization is uneven. Or the semi-finished product is not dried evenly, or the surface of the cloth is stained with solids such as undissolved Yuanming powder and soda ash, or the stain is dripped with water before drying, or the stain of the auxiliary agent is taken after finishing such as the soft treatment of the stain. Similarly, targeted treatments, such as strengthening pre-treatment, pre-treatment additives must not be easy to form calcium and magnesium soap, pre-treatment must be uniform and thorough (this is related to the selection of scouring agent, penetrant, chelating dispersant, mercerizing penetrant, etc. ), Yuanming powder, soda ash, etc. must be transformed into the tank and production management must be strengthened.

6. Softener stains:

There are probably the following causes:

a. The soft material is not good, and there are blocky softeners adhered to the fabric;

b. There is too much foam after softening the material. When the cloth is out of the tank, the cloth is stained with softener foam;

c. The water quality is poor, the hardness is too high, and impurities in the water are combined with the softener to condense on the fabric. Some factories even treat water with sodium hexametaphosphate or alum, and these substances form flocs with impurities in the water, which makes the cloth surface stained after entering the soft treatment bath;

d. The cloth surface has anionic substances, when softening, it is combined with cationic softener to form stains, or the cloth surface has alkali to make the softener coagulate;

e. The structure of the softener is different, and some of them cause the softener to change from emulsified state to slag and adhere to the fabric at a higher temperature.

f. The original tar-like softener and other substances in the tank fall off and stick to the fabric.

Seven, alkaline spots:

The main reason is that after the pre-treatment (such as bleaching, mercerizing), the de-alkali is not clean or uneven, resulting in the generation of alkali spots, so the de-alkali process of the pre-treatment process must be strengthened.

8. Poor fluff:

Poor raising is closely related to the operation of the raising machine (such as tension control, raising roller speed, etc.). For raising, the softening agent (commonly known as waxing) is the key to controlling the dynamic and static friction coefficient of the fabric, so the raising is soft The preparation of the agent is the key. If the softener is not used well, it will directly cause poor hair raising, and even cause the braid or the width of the door to change.

Nine, silicone oil stains:

This is the most difficult type of staining, the main reasons:

a. The PH value of the cloth is not neutral, especially with alkali, which causes silicone oil to break emulsion and float oil;

b. The water quality of the treatment bath is too poor and the hardness is too high. Silicone oil can easily float in water with a hardness of> 150PPM;

c. Silicone oil quality problems include poor emulsification (poor emulsifier selection, poor emulsification process, too large emulsified particles, etc.), and are not resistant to shear (mainly problems with silicone oil itself such as silicone oil quality, emulsification system, silicone oil varieties, silicone oil synthesis process, etc ).

You can choose a silicone oil that is resistant to shear, electrolyte, and PH changes, but you should pay attention to the use of silicone oil and its environment. You can also consider hydrophilic silicone oil.