How does a piece of ‘paper’ prevent string colouring?

Doing laundry is exhausting enough, and even more exhausting is having to do it in multiple loads! Because of the fear of staining!

Dark and light-coloured clothes have to be washed separately undoubtedly increases the workload of laundry, each time to clean out the separate washing, very distressing.

For this situation, the emergence of clothing anti-staining colour absorbing tablets such as this product.

Clothes anti-staining colour absorbent tablets have the following main functions:

• Prevents mixing and dyeing of clothes colours
• Adsorb reactive dyestuffs in aqueous solution.
• Protecting the bright colours of clothes

However, many people do not understand why it looks just a white ‘paper’, can be done to prevent string dye. In this article, let's discuss it.

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I. Principle of anti-staining and colour absorbing sheet for clothes

The principle of anti-staining and colour-absorbing sheets for garments is mainly based on the anion and cation adsorption principle and the nano honeycomb mesh structure.

1. Anion-cation adsorption principle

Most of the dyes on clothes are negatively charged anionic dyes. Anti-colour string laundry tablets (colour absorbing tablets) are modified during production to become positively charged cationic fibres. When the dyes fall into water, the positively charged cationic fibres will combine with the negatively charged anionic dyes, thus preventing the dyes from staining other clothes.

2. Nano Honeycomb Mesh Structure

Colour absorbing sheets are usually made of nano honeycomb mesh structure, which has a strong adsorption capacity and can quickly absorb the dye molecules released by multi-coloured fabrics during washing, thus preventing the shedding of dye molecules from being adsorbed by other clothes.

II. Main features and functions of colour absorbing anti-staining sheets for clothing

Nano-fibre technology: Colour absorbent tablets are usually made of nano-fibre material, which has strong adsorption ability and can effectively capture the active colour ions after hydrolysis, ensuring that different colours will not mix with each other when mixing and washing.

Thin and portable: Compared with traditional washing powder or liquid laundry detergent, colour absorbing tablets are very thin and light, easy to store and carry, especially suitable for home washing and travelling.

Multi-functionality: In addition to preventing colour mixing, the colour absorbent tablets also have the functions of strong cleaning, absorbing bacteria and removing odour. The nest-like mesh structure on its surface can absorb dirt and impurities, and some of the products also have anti-bacterial ingredients to help remove bacteria from clothes, while emitting a fresh fragrance to improve the smell of clothes.

Safe and environmentally friendly: the colour absorbing sheet not only adsorbs anionic organic dirt, impurities and even fluorescent agents and other harmful substances in water, making the washing process safer and more environmentally friendly, which is conducive to the protection of the original colour of the clothes and the health of the wearer.

Widely used: It is suitable for all kinds of fabrics, not only limited to clothing, but also can be used for household textiles washing, greatly simplifying the daily washing process, saving time and water and electricity resources.

III. Use and precautions for colour absorbent sheets for anti-staining of clothes

1. Method of use

Preparation stage: Sort the clothes to be washed according to the colour shade or material and put them into the washing machine.

Add the colour absorbing sheet: According to the number of clothes and colour shades, add an appropriate amount of laundry colour absorbing sheet into the washing machine. Generally speaking, 2-4 pieces can meet the needs of most families.

Start washing: Just follow the normal washing programme. Remember to choose the right washing mode and temperature!

Remove for drying: After the washing is finished, remove the clothes for drying. At this time you will find that the colour of the clothes is as bright as before, and there is no trouble of stringing colours at all.

2. Precautions

• Newly purchased brightly coloured clothes: For newly purchased brightly coloured clothes with heavy colours, such as red, dark blue, dark green, black, etc., it is recommended to wash them separately at least 2 times, and then mix and wash them with other clothes together with colour absorbing sheets after their colours have faded a little.

• Clothes with heavy colour loss: If the clothes have heavy colour loss, you can put two pieces of colour absorbing tablets; if the colour loss is not very heavy, you can put one piece of colour absorbing sheets.

• Already dyed clothes: If the clothes are already dyed, you can moisten the dyed area with water, moisten the colour absorbing sheet, attach it directly to the dyed area and soak it in a small amount of water. Because the colour is already stained, it takes longer to soak. Depending on the material of the garment, some stains may be easily absorbed by the absorbent sheet, while others may be more difficult to absorb.

• Prohibition of soaking in hot water: It is prohibited to use hot water to soak the colour absorbing sheet.

• Saturation level of colour absorbent: If the saturation level of the colour absorbent is not reached, it can be reused. Colour absorbent sheet can only adsorb free pigments in water, i.e. water-soluble pigments, oil-soluble pigments cannot be completely absorbed.

IV. Frequently Asked Questions

1. I'm only washing two clothes, is one sheet enough?

No. The number of discs you put in is based on the severity of the colour loss, not the number of garments. If one of your two garments has severe colour loss, you may need more tablets to absorb the colour. It is recommended to soak newly purchased dark coloured clothes in a basin when you are not sure about the colour loss!

2. Can dyed clothes be absorbed back?

If you have already dyed clothes, please put them back into the washing machine with colour absorbing + washing liquid immediately and re-wash them, depending on the condition of the dye, there is a possibility that they can be salvaged. If it has been dried, it cannot be absorbed by the colour absorbing sheet.

3. Why some clothes lost colour with colour absorbing sheet does not absorb the colour?

The function of the colour absorbing sheet is to quickly absorb the reactive dyes in the water, most of the clothes on the market are reactive dyes. But some poor quality clothes are special process or oil-based dyes with poor colour fastness, in this case, colour absorbent tablets can not be adsorbed.

4. What kind of dyes can't be adsorbed by colour absorbent sheet?

Colour absorbent sheet can only adsorb water reactive dyestuff (reactive dyestuff) in aqueous solution. There are a few polyester-ammonia fabrics with disperse dyestuffs that cannot be adsorbed if they are shed into water, and there are also a few blue jeans that may use indigo as a reducing dyestuff, which has no obvious adsorption effect either.

5. How to distinguish between reactive dyes and other dyes?

If there is no colour on the absorbent cloth after use, or there is only patchy uneven colour blocks, you can be sure that the dyes that fall off are not reactive dyestuffs; if the absorbent cloth after use has been evenly covered with colours, you can be sure that they are reactive dyestuffs, but the colours fall off too much, and the number of absorbent cloths used is not enough, so you need to increase the amount of absorbent sheets at this time.

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