LyzerSpin SR

(POWERFUL SCOURING AGENT)

As LyzerSpin SR is having excellent stability under the alkaline conditions prevailing in the scouring bath, it acts as an excellent scouring agent. Being a solvent base product it is very efficient in removal of natural waxes and other ingredients, which need to be removed to get good absorbent fabric.

LyzerSpin SR can be used in perxoide boiling along with LyzerBleach PB for hosiery, other knitted fabrics or normal woven materials. It can also be used for scouring of 100% polyester or it’s blends.

LYZERSPIN SR
AS STAIN REMOVER


LyzerSpin SR is an excellent ‘STAIN REMOVER’ that can be used in jet dyeing operation for simultaneous dyeing & stain removal. It also prevents rope marks, acts as a defoamer & leveling agent during dyeing. At the end of dyeing operation it acts as a reduction clearing agent. LyzerSpin SR can also be used as effective stain remover either in scouring or peroxide or souring bath. It can also be applied by spotting & padding techniques.

PHYSICAL & CHEMICAL PROPERTIES

1. Light yellow - brown transparent to opalescent liquid with harmless odour.
2. Nonionic in nature, pH of 10% aqueous solution is about 8.0
3. Aqueous emulsions are milky, stable to acidic and alkaline pH as required for common processing, even at higher temperature.
4. Contains no oxalic acid, or any other acidic component to remove iron stains unlike many other products available in the market. It has been observed that process houses sometimes receive cloth having number of stains in a meter length. In such a cloth, applying stain remover manually to each stain and then washing with water becomes a problem. Some of the stains are not washed properly after applying stain remover. Acidic residue on cloth may cause damages to cellulosic component. Oxalic acid solution can be applied only on rust stains followed by wash with water. Alternatively, if rust stains are light, oxalic acid treatment can better be given on jigger.
5. LyzerSpin SR is also devoid of Chlorinated solvents which cause either heavy pick up or hallowing during dyeing. This can be tested easily by using polyester viscose blend, applying stain remover under testing and keeping it unwashed over night. Next day it is washed and dyed with any Indigosol Colour. Under such test, LyzerSpin SR, does not give darker shade at the spotted area whereas chlorinated solvent based stain movers develop distinctly darker shades on such spots.
6. LyzerSpin SR is devoid of oxidizing agents and reducing agents, and can be applied to dyed material without any harm.
7. LyzerSpin SR is having shelf life of more than six months. There is a tendency of becoming yellower on ageing, however; there is no change in the efficiency of the stain remover.

METHODS OF APPLICATIONS, SCOURING
The peroxide treatment may be applied to the cloth after various stages depending up on the set up of the process house. The peroxide treatment may be done by continuous manner by Pad - Batch process / Pad - Steam processe or by batch processes (liquor immersion type) using jet/winch/jigger/kier machine. It may be done after desizing/ scouring/ mercerizing/ hypochlorite bleaching etc. However; it is suggested to carry out atleast demineralization treatment prior to peroxide bleach, if the cloth is likely to have free iron particles from weaving, or high iron impurities from any other source. Demineralization method involves treatment with sulphuric acid 5 g/l + oxalic acid 2 g/l at 60° Centigrade followed by hot & cold wash. The iron impurities have tendency to cause pin holing around iron particle due to accelerated peroxide bleaching if the demineralisation pre treatment is not carried out prior to peroxide.

The recipes for desizing, scouring etc. should be as per normal practice of the process house. Peroxide treatment may vary as per the stages of the pre treatment of the cloth and the left over of size, fats & colouring matter etc., after the pre treatment. Few of the recipes are suggested below (See table over next page) are for the guide line of the process house & lab trials prior to bulk trials are suggested.

Persulphate depolymerises starch based size better than peroxide. Amount of Persulphate depends on % of size left over the fabric. For knitted goods without size Persulphate may be omitted from the recipe.

Sodium silicate is also a peroxy stabilizer, however if the water is hard it gives very harsh feel to the cloth. Sodium silicate stabilizing effect is not suitable for alkalinity obtained by caustic soda 40 g/l. If the water is not hard then 5 -10 g/l sodium silicate may be used in the bath & half the quantity of LyzerBleach PB may be reduced to improving on the chemical cost. LyzerBleach PB is miscible with sodium silicate.

TABLE INDICATING RECIPES:

 

Desize – sour Scour – Peroxide Bleach

Gary Fabric With size- Peroxide

Desize – Sour Scour- Peroxide

Gray Fabric (with size) Peroxide

 

Immersion Method

Jig            Jet

% w/w      % w/w

Immersion Method

Jig            Jet

% w/w      % w/w

Pad          Pad

Batch       Steam

g/l            g/l

Pad          Pad

Batch       Steam

g/l            g/l

LyzerBleac PB

1.0         1.0

1.0         0.8

3-5         2-4

8-10         6-8

LyzerSpin SR Scouring Agent

1.0         1.0

1.0         1.0

10.0         8-10

10.0         8-10

Caustic Soda

4.0         4.0

4.0         3.0

15-20         10-15

40-50         30-40

Hydrogen Peroxide 50%

1.5         1.0

2.0         1.5

15.0         8-10

20.0         12-15

Persulphate

Nil         Nil

0.5         0.5

Nil         Nil

5.0         5.0



HAND SPOTTING
Spotting is an age old process for removing of stains. LyzerSpin SR easily removes stains of industrial greases and lubricating oils. As indicated earlier the pH of LyzerSpin SR is about 7.0 and hence is harmless for delicate fabric containing viscose. LyzerSpin SR, on account of its almost neutral pH does not cause any damage to the hands of the worker (Nail linings gets damaged by acidic pH ). However; one has to use oxalic acid solution for heavy rust stains separately, wherever required. For general rust stains oxalic acid treatment on jiggers is recommended.

PAD / JIG METHOD
In another method goods are padded with LyzerSpin SR - 10 g/l, hydrogen peroxide - 1 g/l and kept overnight, under proper cover. Next day goods are washed on jigger and in the same wash liquor further treated with oxalic acid - 5 g/l at 80 degree centigrade for one hour. Remaining process for bleaching is done as usual.

Goods with coloured woven yarn can directly be treated on jigger with 5 to 10 g/l of LyzerSpin SR. Treatment is done at 80 degree centigrade for one hour. It is frequently observed that coloured yarn in such goods is not properly washed and bleeds furiously, even after completion of scouring. In a pile of such cloth unloaded from jigger after scouring, the bottom layers get soiled with ‘water mark’ type colour stains. In such type of goods LyzerSpin SR, while removing stains also helps in complete removal of loose colour and eliminates formation of water marks.
On jigger LyzerSpin SR can be used along with peroxide or oxalic acid or alkali like soda ash, caustic soda etc. depending upon the type of blend under consideration, processors can use LyzerSpin SR along with scouring, oxalic treatment or peroxide bleach.

SIMULTANEOUSLY APPLICATION OF DYEING & STAIN REMOVING ON JET
The cloth with coloured woven patterns, required to be topped with medium to light shades are conveniently treated by this method. LyzerSpin SR is more popularly used in jet dyeing m/c, using un heat set cloth for dyeing. This however; causes additional shrinkage & the quality of cloth where such additional shrinkage is acceptable, can only be processed by this process. After the cloth is loaded, LyzerSpin SR 1 g/l is added and the cloth is worked for five minutes. Heating cycle is started simultaneously. Next acetic acid 1 g/l is added and cloth is worked for further five minutes. The predispersed colour is then added and dyeing cycle is run as per required by the quality of cloth. For the coloured woven cloths the dyeing cycle is carried out at 110 degree centigrade. Cloth is worked at maximum reel speed and the advantage of rubbing action between cloth to water and cloth to cloth is achieved, which helps in removing stains. LyzerSpin SR removes stains during dyeing without interfering the colouring process. The cloth gets simultaneously scoured, stain-free and dyed. LyzerSpin SR behaves like a leveling agent also. As per the common feature of any leveling agent, the colour value loss up to 5 to 10% is observed due to simultaneous dyeing & stain removing. This is however; many times acceptable total process time is considerably saved. In addition, to simultaneous dyeing & stain cleaning, LyzerSpin SR also simultaneously removes the loose colour from coloured yarn. This avoids water marks like coloured staining which is a common problem with this type of varieties.

Packing:
30, 50 & 200 Kgs in Plastic Container.

Shelf Life
9 to 12 months if stored below 30°c.

Note:
According to our best knowledge and technical experiments, the above data is true and accurate. Regarding to variety of consumption procedures, it is recommended to evaluate the information before use.

 

 

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