TECHNICAL INFORMATION
Low formaldehyde reactive resin for easy-care finishes
GENERAL PROPERTIES
- used for the resin finishing of woven and knitted cellulose fibres and their blends.
- applied by normal dry crosslinking methods on fabric.
- gives low formaldehyde levels on the treated fabric, meeting Öko Standards
- gives wash and wear effects durable to washing up to the boil
- gives chlorine resistant finishing
- compatible with most additives used in textile finishing
- minimises tendency to yellow
- gives excellent crease recovery and shrinkage control
- can be used with fluorochemical based water repellents
- because of high reactivity, an increase of stenter frame speed is possible for approx. 10%
PHYSICAL PROPERTIES
| Appearance |
Light yellowish liquid |
| Chemical Constitution |
Modified dimethylol dihydroxy ethylene urea |
| pH |
4.5 - 5.0 |
| Density (20°C) |
1.21 ± 0.05 g/cm3 |
| Solubility |
Dilutable in cold water in any proportions |
| Storage |
Can be stored for at least 12 months in closed containers at ambient temperatures |
SPECIAL ADVICE
- Ensure the fabric is well prepared, neutralised correctly and has not been treated with formaldehyde containing products such as cationic dye fixing agents in the preceding processes.
- For optimum results the resin should be applied at pH 4-5
PROCESSING
In order to achieve optimum curing the fabric should be hydrophilic and free from alkali.The amount of
Durapret LF Conc required is first diluted in water, the additives followed by the prediluted catalyst are added and then the bath is set to pH 4-5 and made up to final volume with water.
APPLICATION
| |
Wash & Wear on 100% Cotton |
Easy Care on Polyester / Cotton |
Low shrink finish 100% Viscose |
| Durapret LF Conc |
30-60 g/l |
20-40 g/l |
60-120 g/l |
| Biosoft PS-400 |
10-30 g/l |
10-30 g/l |
20-40 g/l |
| Silsoft FBS |
10-30 g/l |
10-30 g/l |
20-40 g/l |
| Biocat M |
20-30 g/l |
20-50 g/l |
30-60 g/l |
| Acetic Acid |
1 ml/l |
1 ml/l |
1 ml/l |
| Pick up |
70-80% |
70-80% |
70-80% |
| Double Pass Process |
Drying |
110 - 130°C |
|
|
Curing |
150 - 155°C |
2.5 - 1.5. minutes |
|
|
170 - 180°C |
40 - 25 seconds |
| Single Pass Process |
Rapid curing |
160 - 170°C |
60 - 45 seconds |
| WRINKLE FREE APPLICATION |
Garment 100% Cotton |
| Durapret LF Conc |
65-80 g/l |
| Biosoft PS-400 |
20-30 g/l |
| Biosoft FBS |
20-30 g/l |
| Biocat M |
30-40 m/l |
| Acetic Acid |
1 ml/l |
| Pick up |
60-80% |
The garments are treated in an industrial washing machine at 30°C using a liquor ratio between 1:10 and 1:20 for 15-30 minutes followed by hydroextraction. After tumble drying and pressing, the garments are cured at 150-155°C for 8-12 minutes in an oven.
PACKAGING
200 Kg Iron Drum
Note:
The information is not to be taken as a warranty or representation for which we assume legal responsibility nor as permission or recommendation to practice any patented invention without a license. It is offered solely for your consideration, investigation and verification. |
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