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Flame Retardant CU

Specification

Appearance:                      Clear highly viscous liquid

Color Number:             100 max.

Phosphorus, Wt% :              20.5% min.

Acid Number (mg KOH/g):    10 max.

Density (g/cc @ 25℃):         1.2-1.3

Viscosity @ 20℃( Cps):       150000max.
Flash Point:                165℃

DMMP Assay, Wt%:              0.5%max.

TMPP Assay, Wt%:               0.5%max.

Durable to washing times:     50 times min.

Brief introduction

FR-CU is an efficient cyclic phosphonate flame retardant for the treatment of textiles. It is non-corrosive with high phosphorus content, excellent water solubility on a wide range of fabric type. It is mainly used in furnishing, curtaining, building, special workwear and automotive applications. It is particularly suitable for the treatment of polyester fabrics, T/C blends and PU coating to impart a finish that is durable to washing and dry-cleaning.

Properties

• High heat stability and good retain of hand feel and drape after processing
• Low volatility and good compatibility to major polymer
• Little discoloration after treatment
• High durability to washing and good retain of color brightness.
• Non-toxicity and high safety.

Typical application process

1. Treatment of polyester fabric and T/C blends

1. Fabrics for treatment with flame retardant should be clean and absorbent. Starch and other sizes should be removed before processing.
2. Fabrics shall be treated by padding, dipping according to fabric composition, weight and construction.
3. 120～140℃×60sec., pre-drying
4. High temperature thermofixation process:

                      PET fabric:  plain fabric     195～205℃×40～60sec. 

                                       knitted fabric  185～205℃×40～60sec. 

PA fabric:               160～180℃×40～60sec.

1. Cooling, rolling up the treated fabric. To improve the hand feel, fabric can be cleaned again if necessary to remove the un-affixed flame retardant on the fabric.

2. Coating treatment of Polyester fabric and PU fabric

The formulation is dried and cured in a single pass at 150℃for 120 seconds.

The formulation is buffered to pH 5 using Sodium Carbonate. The added amount of soda ash is about 0.4%.

Additional item

1. Required add-on level for polyester fabric is only no less than 1.4% w/w to achieve performance if the flame retardant is affixed effectively on the fabric.

(The above mentioned information is according to our own knowledge and experience. It is advised to make lab trial and a small batch trial before formal treatment to get optimum processing condition.)

2. If the treatment is completed, after 50 times of washing under 60℃, there is still at least 90% flame retardant on the fabric.

3. Considering the treatment of high temperature thermofixation processing, we think it is very important to select suitable dyestuff for polyester fabric, otherwise, discoloration or color fading may occur.

Attention

The information of our products is for reference only. We are not responsible for any unexpected results or patent dispute caused by it.