Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Cleaning Ingredients Functions
- CAS No.
- 70084-87-6
- EC No.
- 615-058-8
- Technologies
Features & Benefits
- Labeling Claims
- HII Features
- Product Background
Coltide HPVP is a copolymer of hydrolysed wheat protein and polyvinylpyrrolidone (PVP), and possesses an average molecular weight (MW) of 40,000. Individually, both hydrolysed wheat protein and PVP find use in fabric detergents and softeners. Hydrolysed proteins are incorporated for their recognized moisturizing properties and substantivity to natural fibers. PVP is a recognized dye transfer inhibitor (DTI) and film-former. By combining hydrolysed wheat protein and PVP into a copolymer, a novel product is obtained providing functional benefits associated with the parent materials. Coltide HPVP is therefore particularly recommended for evaluation as a conditioning additive in color care systems.
- Product Highlights
- Excellent film former
- Moisture retentive
- Increases fiber luster and shine
- Potential dye complexing properties
- Coltide HPVP is a copolymer of well established industrial ingredients. They are expected to be non-toxic on ingestion and essentially non-irritating to skin and eyes.
Applications & Uses
- Markets
- Applications
- Home Care Applications
- I&I Cleaning Applications
- Applications
- Fabric conditioners/softeners
- Laundry detergents - suitable for liquids,powders and tablets
- Fine and delicate wash detergents
- Woolens treatments
- Permanent press / starch sprays
- Formulation Guidelines
Coltide HPVP is compatible with all types of commonly used anionic detergents, nonionics, amphoterics and cationic surfactants. Recommended inclusion levels are up to 1.0% active depending on the desired effect.
Properties
- Physical Form
- Typical Properties
Value | Units | Test Method / Conditions | |
Molecular Weight | 40000 | - | — |
Technical Details & Test Data
- Performance Evaluation
Coltide HPVP has been evaluated on human hair as a model for natural fibers eg wool. The wool follicle and the wool fiber are very similar to human hair follicles and fibers. Both wool and hair consist of protein-based structural materials and possess cuticular surfaces. The performance of Coltide HPVP on hair is therefore taken as an indication of its expected performance on natural fabrics.
Fabric & color care
Coltide HPVP possesses excellent film-forming and conditioning properties. This dual action can impart a light conditioning to individual fabric fibers, helping them to remain regular and smooth and to retain their natural elasticity. Garments should therefore keep their original shape for longer, with wear and tear being reduced.
Typically when fibers are damaged, exposed fibrils form on the surface (bundles of fibrils make up a fiber). This build-up distorts and scatters light, affecting perception of color, and causes the garment to take on a dull appearance. As a film-forming and conditioning copolymer, Coltide HPVP can therefore help clothes keep their original color and vibrancy for longer.
Fiber luster
The luster, or shine, of textile fibers can be a ssessed using a goniospectrophotometer. This measures the reflected light at variable reflectance angles, and produces goniophotometric curves which can be used to evaluate the perceived luster of the textile substrates. In an independent study, analysis of bleached cashmere fibers treated with Coltide HPVP indicated a significant overall improvement in measured reflectance and associated luster. As a result, colored garments in particular will reflect more light and appear revitalized.
DTI (Dye Transfer Inhibition)
Dye complexing polymers are commonly used in laundry detergents and fabric softeners. When washing a mixture of colored and white fabrics, it is common for some of the dyes to bleed out of the colored fabric. The degree of bleeding depends on a number of factors, including structure of the dye, type of cloth, pH, washing temperature etc. This fugitive dye may be simply washed away, however, more typically it is redeposited onto other fabrics in the wash, leading to discolored whites. The redeposition of the dye can be inhibited by introducing a DTI compound which complexes with the fugitive dye.
Polyvinylpyrrolidone (PVP) possesses the ability to complex dyes, and is cited as a DTI ingredient inhibiting dye redeposition in colored washes. As a PVP copolymer, Coltide HPVP is recommended for evaluation in color care formulations in particular.
Moisturisation
By increasing the moisture content of natural fibers they become more plasticised and less brittle. As a result they are less prone to breaking and have a softer feel. The moisture absorption isotherm for Coltide HPVP is shown in figure 1. The effect of grafting a PVP chain onto the hydrolysed wheat protein is to modify the shape of the isotherm to behave like a higher molecular weight protein. When deposited on fabrics, Coltide HPVP is expected to increase fiber moisturisation due to its hygroscopic nature. (Normal fabric drying times are unaffected).
Figure 1: Moisture absorption isotherm of Coltide HPVP
Packaging & Availability
- Country Availability
- Regional Availability