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Water-soluble films and water-soluble unit dose articles made therefrom

A water-soluble film, water-soluble polymer technology, applied in detergent materials, detergent compositions, chemical instruments and methods, etc., can solve problems such as incomplete film dissolution

Pending Publication Date: 2022-07-22
THE PROCTER & GAMBNE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has been found to be extremely challenging, as, for example, water-soluble films exhibiting excellent dissolution characteristics tend to be extremely sensitive to premature rupture following accidental exposure to water, while films exhibiting low sensitivity to premature rupture appear to be under stress water conditions. with incomplete membrane dissolution

Method used

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  • Water-soluble films and water-soluble unit dose articles made therefrom
  • Water-soluble films and water-soluble unit dose articles made therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0079] testing method :

[0080] 1. Membrane disintegration time :

[0081] According to the MSTM-205 disintegration protocol, the cold water film disintegration characteristics of different sodium caseinate / polyvinyl alcohol homopolymer water-soluble films were determined in demineralized water at 10°C. Within this test, the average membrane rupture time (in seconds) has been recorded for 3 replicates.

[0082] 2. Membrane dissolution time :

[0083] The cold water solubility characteristics of different sodium caseinate / polyvinyl alcohol homopolymer based water-soluble films were determined in demineralized water at 20°C by Monosol using a dissolution chamber according to MSTM-119 Standard Test Method for Residues. In this test, the average % dissolved film after 10 minutes of immersion in water has been recorded for 3 replicates of the film.

[0084] 3. Tensile strain at break % :

[0085] The water soluble film test samples were analyzed for % tensile strain at...

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PUM

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Abstract

The present invention provides water soluble films and unit dose articles made therefrom wherein the water soluble films comprise a water soluble polymer wherein the water soluble polymer comprises a blend of a caseinate polymer and a polyvinyl alcohol homopolymer.

Description

technical field [0001] Water-soluble films and unit-dose articles made therefrom. Background technique [0002] Water-soluble films comprising water-soluble polyvinyl alcohol homopolymers and / or copolymers have been known for a long time and have been used in many applications. [0003] One of the possible areas of application for such water-soluble films is water-soluble laundry unit dose detergent formulations. Without wishing to be bound by theory, the water-soluble unit-dose article includes a water-soluble film and a unitary dose of a treatment composition contained within one or more compartments within the unit-dose article. Upon addition to water, the water-soluble film dissolves and / or disintegrates and releases the treatment composition into the water. [0004] While complete dissolution of these water-soluble films is required under use conditions so as not to leave undissolved residues on clothing items, even when exposed to extremely stressful wash conditions ...

Claims

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Application Information

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IPC IPC(8): C11D17/04C08L29/04C08J5/18C08L89/00
CPCC08L29/04C11D17/042C08L89/005C08J5/18C08J2329/04C08J2429/04C08J2489/00C08J2389/00C08K5/053C11D17/045C11D17/044C11D17/043C11D1/00C11D2111/12C11D2111/14
Inventor F·C·库柴马洁
Owner THE PROCTER & GAMBNE CO
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