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Deepening silicone oil JV-830 improves the depth effect of dyed products

Views: 0     Author: Site Editor     Publish Time: 2024-09-10      Origin: Site

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At present, dye factories need to face the constantly rising energy prices and rapidly increasing prices of textile auxiliary raw materials, which brings enormous pressure to their operations. In order to reduce production costs and improve enterprise competitiveness, dye factories urgently need to take measures such as saving energy consumption and reducing sewage discharge.


The black cotton fabric, polyester fabric, and polyester cotton blended fabric sold in the domestic fabric market have increasingly high customer requirements for the depth of dark fabrics (especially active black, sulfide black, and dispersed black), but often cannot reach the confirmed fabric sample depth by customers. Although increasing the amount of dye used can deepen the color, it still cannot meet the requirements for dark depth of textile fabrics. At the same time, the color fastness also significantly decreased due to the increase in dye dosage.


The use of deepening silicone oil JV-830 for fabric treatment can increase visual depth by utilizing optical principles without increasing dye usage, making the fabric appear darker and improving the depth effect of dyed products. In addition, the processed fabric has a soft and delicate feel, saving dye usage and reducing production costs. At the same time, this treatment method can also reduce the content of colored substances in dyeing and finishing wastewater, which is in line with the development direction of the textile industry of energy conservation, emission reduction, and cost reduction.



1. Production Practice


1.1 Deepening mechanism of silicone oil

In recent years, customers have increasingly high requirements for the color depth of dark fabrics, especially reactive black, sulfide black, and dispersed black, which poses new challenges for printing and dyeing enterprises in terms of production technology. At present, there are two main processing methods for dye factories to darken the color of fabrics: one is to modify the surface of fabrics with cations, making cationic fibers and anionic dyes more absorbent, improving the dyeing and fixing rates of dyes on fabrics, and achieving the goal of dark colored dyes; Another approach is to use optical principles to alter human vision, making the fabric appear darker dyed.


The function of deepening silicone oil JV-830 is to reduce the fabric's ability to reflect and scatter light by covering the fabric surface with a low refractive index organic substance. This processing method is based on optical principles and can change the visual effect in the human eye, resulting in a dyeing depth of 30-50% on the fabric. This product is easy to use (can be used in the shaping machine slot) and has significant effects. Currently, black dyes are widely used in dyeing factories.


1.1.1 Cationic modification of fibers.

In order to improve the dye uptake and fixation rate, and increase the color depth, it is necessary to first perform cationic modification on the fabric to be treated. This can change the surface charge properties of the fabric, making the adsorption force between the fibers and dyes stronger. Cationic modification of fibers is to give them a positive charge, thereby making them more stable when combined with anionic dyes.


1.1.2 Using optical principles to change human vision

After fabric treatment, a low refractive index film is formed on the surface of the fibers, which changes the absorption, reflection, and refraction of light by the fibers. Through optical principles, it changes the visual effect of humans, making colors appear darker. The commonly used methods for enhancing color currently are resin and organic silicon materials. Among them, the deepening silicone oil JV-830 belongs to an environmentally friendly special silicone compound, which can be used for coloring and enhancing finishing after dyeing with reactive dyes, dispersed dyes, sulfurized dyes, direct dyes, or after washing finished garments.


Application process of deepening silicone oil JV-830:


Suggested emulsification process: (Taking 40% concentration as an example, the specific concentration needs to be adjusted)

Suggest using purified water and softened water. The prepared lotion has better stability.

Suggested equipment: Emulsifying kettle with large dispersing disk



Number of copies

JV-830

40

WATER

60

1. JV-830 Stir for 10 minutes

2. Slowly add water while stirring

Note: It is recommended to use a dispersing plate for better mixing effect. Avoid foam when mixing.


2. Conclusion

(1) When the dye has not reached saturation, using a darkening silicone oil treatment method can reduce the amount of dye used and achieve the same color depth as using a large amount of dye. From the perspective of overall comprehensive cost, the cost of using deepening silicone oil is lower than that of dyes. Meanwhile, excessive use of dyes can also affect the color fastness of the product.


(2) After dyeing with reactive black or sulfur black, the dye has reached saturation, but the color depth still does not meet the requirements of the customer's sample. When the amount of dye continues to increase, the increase in color depth becomes less significant, and the color fastness of the fabric sharply decreases. In this case, if the fabric is treated with deepening silicone oil JV-830, it can break through the limit of black and increase the color depth by 30% to 50%.


(3) The use of deepening silicone oil JV-830 not only reduces the amount of dye used, but also reduces the amount of softener used due to its flexibility function, saving production costs.


(4) It does not affect the fastness and color of the product, and endows the fabric with excellent washability. The deepening silicone oil forms a thin film on the surface of the fabric fibers, which helps to improve the friction fastness of the product.


(5) The deepening silicone oil JV-830 has good reproducibility after black or other dyeing treatments, which is beneficial for the quality control of dyeing factory products.


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