Detergent Sheet Composition for Fast Dissolution and Low Stickiness
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Solution Overview
Problem
Conventional detergent products are bulky, require significant packaging, and often contain non-renewable materials, compromising environmental friendliness and cleaning efficacy, while polyvinyl alcohol-based detergent sheets are incompatible with certain additives and may compromise efficacy.
Innovation Solution
A detergent sheet comprising a combination of a swellable disintegrant with high water absorption ratio, a water-soluble polymer containing cellulose compounds, and a slip additive, which includes surfactants like anionic, non-ionic, and amphoteric surfactants, enhances cleaning efficacy and ease of use by ensuring quick dissolution and reduced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional detergent products use substantial amount of carrier material (water in liquid format and inert fillers in solid format), then cleaning efficacy is maintained, but the product becomes bulky and consumes significant packaging materials
Solution Approach 1:
The patent extracts and removes the substantial amount of carrier material (water and inert fillers) from conventional detergent products, retaining only the essential cleaning ingredients in a concentrated sheet format. This extraction principle directly resolves the contradiction by eliminating bulk while preserving cleaning functionality.
Solution Approach 2:
The patent changes the physical and chemical parameters of the detergent formulation by converting from a diluted liquid/solid format to a concentrated sheet format with controlled solubility characteristics. The sheet is designed to dissolve at specific rates, transforming the delivery mechanism while reducing overall volume and carrier material content.
2Quantity of substance
If detergent products contain substantial amount of carrier material, then cleaning efficacy is maintained, but packaging material consumption increases
Solution Approach 1:
By extracting and removing excess carrier material from the detergent formulation, the patent eliminates the need for bulky packaging that would be required to contain and transport large volumes of water and fillers. The concentrated sheet format requires minimal packaging, directly addressing the packaging material consumption issue.
3Object-affected harmful factors
If polyvinyl alcohol is used as water-soluble polymer in detergent sheets, then sheet format is achieved, but compatibility with certain ingredients (sequestrants, soil release polymers, anti-redeposition polymers) is lost
Solution Approach 1:
The patent changes the chemical parameters of the water-soluble polymer system by selecting alternative polymers with different chemical properties that are compatible with sequestrants, soil release polymers, and anti-redeposition polymers. This parameter change in polymer chemistry resolves the compatibility issue while maintaining sheet format and cleaning efficacy.
4Ease of operation
If detergent sheet dissolves quickly in water, then ease of use is improved, but control over dissolution rate may be reduced
Solution Approach 1:
The patent optimizes the physical and chemical parameters of the sheet formulation, including polymer selection, crosslinking density, and additive composition, to achieve rapid dissolution while maintaining controllable and consistent dissolution characteristics. The balanced formulation ensures both ease of use and predictable performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The detergent sheet provides effective cleaning performance comparable to conventional products, is eco-friendly, and easy to use, with quick dissolution and reduced stickiness, utilizing renewable materials and minimizing packaging waste.
Implementation Method 1
a swellable disintegrant having water absorption ratio greater than 1 measured according to the ASTM D570
Implementation Method 2
a water-soluble polymer comprising a cellulose containing compound having a solubility at least 0.5% by weight in distilled water at 25 °C
Implementation Method 3
0.1 to 10% by weight of a slip additive selected from erucamide, oleamide, stearamide and combinations thereof
Data Source
AI summary
The present invention is in the field of cleaning compositions. More particularly, the present invention relates to a detergent sheet for providing a cleaning composition on dissolution. There is a need to provide a 'eco-friendly' detergent product in sheet format providing cleaning efficacy at par with conventional products and easy to use. It is found that a combination of a swellable disintegrant and select slip additive, which also contain a water-soluble polymer comprising cellulose derivative and surfactant, provides a 'eco-friendly' detergent sheet. The sheet dissolves quickly in water yet does not stick to each other on storage, thus easy to use. The present invention further describes a process of making the detergent sheet and a process of providing a cleaning composition from the detergent sheet.