Coltide™ HPVP

1 of 9 products in this brand
Coltide™ HPVP is an average molecular weight copolymer (40,000) composed of hydrolyzed wheat protein and polyvinylpyrrolidinone (PVP). This unique copolymer combines the moisturizing and substantivity properties of the natural protein with the dye transfer inhibition and film-forming properties of PVP. It offers excellent color protection and garment care in laundry applications.

Chemical Name: Glutens, enzyme-modified

Functions: Dye Transfer Inhibitor, Fabric Conditioning Agent, Film Former, Surface Protectant

Labeling Claims: Non-Toxic

End Uses: Detergents, Fabric Care, Fabric Cleaners, Fabric Conditioners, Fabric Softeners, Laundry Detergents, Liquid Laundry Detergents, Powder Laundry Detergents, Spray Cleaners

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CAS No.
70084-87-6
EC No.
615-058-8

Features & Benefits

Labeling Claims
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
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
ValueUnitsTest Method / Conditions
Molecular Weight40000-

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).

Croda Coltide HPVP Performance Evaluation

Figure 1: Moisture absorption isotherm of Coltide HPVP

Packaging & Availability

Regional Availability
  • Asia
  • Europe
  • Latin America
  • North America