Home Care Chromabond™ S-350 dye transfer inhibitor

Chromabond™ S-350 dye transfer inhibitor Overview Keeping white garments white and colors their original shade can be accomplished with dye transfer inhibitor technology. Chromabond S-350 polymer is a novel dye transfer Inhibitor (DTI) technology that works by binding to dyes removed from clothing during the wash cycle. Virtually eliminating the ability of “free dyes” to redeposit on fabric, the polymer forms stable complexes with various colors, including direct orange, direct red, direct black and acid blue. Using Chromabond S-350 polymer at low use levels affords manufacturers the ability to include consumer-desirable “color-safe” label claims.

Chromabond™ S-350 dye transfer inhibitor Overview A polymer additive approach offers manufacturers a simple yet efficient option for adding color-safe label claims. Chromabond S-350 polymer is based on class-leading Poly Vinyl pyridine N- Oxide (PVNO) Is stable in bleach containing detergents Maintains efficacy in the presence of surfactants May be used in a broad pH range Performs well at very low concentrations Is non-hazardous

Chromabond™ S-350 dye transfer inhibitor Overview Owing to the efficiency of Chromabond S-350 polymer is an aromatic ring within its molecular structure, a positive charge attraction to anionic dyes and additional hydrogen bonding to direct dyes. C H C H 2 n Aromaticity ensures stable dye complexes are formed Charge attraction to anionic direct dyes N + Additional Hydrogen bonding to dyes - O

Chromabond™ S-350 dye transfer inhibitor Function When included in laundry detergent formulations at 0.3 to 0.6%, manufacturers generally have the ability to make color-safe label claims, even in regions with hard water conditions and in elevated wash temperatures. Typical properties Molecular weight 13,000 Description 35% aqueous solution Appearance Clear amber colored solution free from impurities Gardner color Minimum 6, Maximum 13 Degree of oxidation 90% Minimum % Polymer 35± 2% (in water) Viscosity (cps) (@ 80°F (27°C), spindle #18, 30 rpm) 40-80 pH 4.0-5.0 Hydrogen peroxide (ppm) 2 Maximum Vinylpyridine monomer 0.05% Maximum Melting point Approximately - 4°C Specific gravity 1.15 @ 25°C Density 9.6 lbs/gal Flash point > 200°F TCC Water solubility Freely soluble at ambient temperature

Chromabond™ S-350 dye transfer inhibitor Function Included at very low use levels, between 0.1% and 0.2%, Chromabond S-350 polymer out performs legacy dye transfer inhibitor technology, such as PVP polymer. Historically, PVP polymer provided some dye transfer inhibition technology but using a more efficient polymer technology based on Poly vinyl pyridine N-oxide (PVNO) offers better color protection benefits. The difference in performance is measurable and result in formulations that better maintain garment color intensity.

Chromabond™ S-350 dye transfer inhibitor Efficacy testing Modified ASTM D-5548-95 with commercial detergent Add 2 Cotton Fabrics Terge-o-to-meter Washing 100°F 100 rpm 10 min. Transfer 2 cotton fabric to rinse, after removing access water Terge-o-to-meter Rinsing 1L DiH2O with 110 ppm Hard water 100°F 100 rpm 3 min. Air dry cotton fabrics W/O Polymer Wash Solution Preparation Dye (10 ppm) With or Without Polymer (10ppm) C. Detergent (0.1%) Hard Water-110 ppm (3:1 Ca:Mg) Dilute to 1L w/ DiH2O W Polymer Fabrics Bleached Cotton 400 Fabric, 4.25 x 3.25 in – 2 Fabrics /wash

Chromabond™ S-350 dye transfer inhibitor Efficacy testing Procedures (USA wash conditions): ASTM D-5548-95, a dyed cloth is used and the re-deposition of the bled dye from the dyed cloth onto a white cloth is measured. At Ashland, a known concentration of the dye is added and its deposition onto a white fabric is determined. Solution containing 10 ppm dye, 10 or 20 ppm polymer, 1g/L detergent and 110 ppm hard water (Ca:Mg 3:1) diluted to 1L with DiH2O and placed in Terg-O-Tometer: 4 dyes chosen as per AISE’s StiWa protocol Once the solution has equilibrated to 100°F/38°C, two cotton swatches are added and the washing process is conducted for 10 minutes at an agitation rate of 100 cycles/min. Swatches are removed and rinse water prepared with 110 ppm hard water (Ca: Mg 3:1), which is again diluted to 1.0L with DiH2O and placed in a Terg-O-Tometer. Fabrics are rinsed for 3 minutes and excess water is squeezed by hand. Swatches are dried. Six reflectance measurements (3 measurements on each swatch) are taken using a Hunter Colorimeter (ColorQuest XE) on a CIELAB color scale. The ΔE* value is reported, it is the difference between the starting fabric and the washed fabric. ΔE* value closer to zero indicates less deposition of the dye on to the fabric. Commercial Detergent used - Wisk 2X original liquid detergent

Color Measurement on Fabric Instrument: Hunter ColorQuest XE Sensor Manager: Sensor Name: CQX3069 Current Sensor: ColorQuestXE Port:1 Current Mode: DTI Set Mode: Mode Type: RSEX-Reflectance Specular Excluded Area View: 1.00 in UV Filter Position: Nominal Standardization Status: Standardized

Color Measurement on Fabric Instrument: Hunter ColorQuest XE Sensor Manager: Sensor Name: CQX3069 Current Sensor: ColorQuestXE Port:1 Current Mode: DTI Set Mode: Mode Type: RSEX-Reflectance Specular Excluded Area View: 1.00 in UV Filter Position: Nominal Standardization Status: Standardized Color Scale Parameters: Scales: CIEL*A*B* Illuminant/Observers:D65/1 0° Differences: dL* da* db* dE* Indices:/ Measurements: Select Average For Delta Reflectance  Average Method : n of N 6 Total of six measurements are taken per fabric set Measure dE* Control Measure dE* Polymer on Hunter Colorimeter Cutting-Edge Chemistry that Addresses Consumer Trends - April 1, 2010

Chromabond™ S-350 dye transfer inhibitor: Strong DTI Performance Improved DTI performance Polymer Conc.: 10ppm level Chromabond S-350 polymer is the best performer at low dosage levels

Chromabond™ S-350 dye transfer inhibitor: Strong DTI Performance Improved DTI performance Polymer Conc.: 20ppm level Chromabond S-350 polymer is the stand-out performer at high dosage levels

Chromabond™ S-350 dye transfer inhibitor: Dose Response Improved DTI performance Increasing Dosage Increasing DTI observed with increasing dosage of Chromabond S-350 polymer

Chromabond™ S-350 dye transfer inhibitor: Class Leading DTI Performance Ashland evaluations have confirmed that Chromabond S-350 polymer offers class leading DTI performance: Tests were compared against commonly-used DTI polymers PVP (Poly Vinyl Pyrrolidone) Chromabond S-100 polymer (Poly Vinyl Pyridine Betaine Chemistry) Chromabond S-350 polymer was the best performer in our tests Statistically significant reduction in level of transfer of direct orange, red and black dyes Numerical reduction in level of acid blue transferred to cotton receptor swatches Furthermore, previous studies on PVNO-containing DTIs have shown additional benefits: Maintenance of DTI efficacy in presence of hard water Minimal interaction with anionic surfactants in the detergent formulation Maintenance of efficacy at elevated temperatures

Chromabond™ S-350 dye transfer inhibitor Samples of Chromabond S-350 polymers are available now for you to test For best results it is recommended to use Chromabond S-350 polymer between 0.1% and 0.2% w/w polymer in your formulations ~0.3% to 0.6% product as supplied Ashland may be able to undertake DTI testing of Chromabond S-350 polymer for you at our regional laboratories Please ask your Sales Representative for more details

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