Paper treatment agent

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Solution Overview

Problem

Conventional paper treatment agents fail to maintain a favorable texture and sense of use, particularly under varying humidity conditions, as they either impair fluidity and uniform application or do not adequately provide a slippery feeling when pressed against the skin.

Innovation Solution

A paper treatment agent comprising a polyhydric alcohol as the main component, combined with a straight chain alcohol or fatty acid and an anionic surfactant, which reduces moisture absorption and desorption, thereby maintaining texture consistency across different humidity levels and enhancing the slippery feeling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If water-soluble wax is mixed with moisturizer, then stable retention of smoothness is attained, but viscosity increases and fluidity is impaired

Engineering Contradiction:

Improvestable retention of smoothnessVSAvoidfluidity and uniform application

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent changes the chemical structure parameter of the alcohol component from conventional types to straight-chain alcohols with specific carbon atom numbers (12-24). This structural parameter change enables the alcohol to provide smoothness without the viscosity increase associated with water-soluble waxes, resolving the contradiction between stability of smoothness and fluidity.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses straight-chain alcohols as a substitute that copies the desirable smoothness effect of water-soluble waxes without their harmful high viscosity. The straight-chain alcohol structure mimics the lubricating effect while maintaining low viscosity and good fluidity for uniform application.

Inventive Principle:

Principle #26Copying

2Reliability

If polyhydric alcohol is used as moisturizer, then hygroscopic property and moisture retaining property are enhanced, but texture deteriorates under varying humidity conditions

Engineering Contradiction:

Improvemoisture retaining propertyVSAvoidtexture consistency under humidity variation

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent creates a composite system combining polyhydric alcohol (for moisture retention) with straight-chain alcohols of specific carbon numbers (for texture stability). This composite approach allows the polyhydric alcohol to provide hygroscopic properties while the straight-chain alcohol components maintain texture consistency across different humidity conditions by providing a humidity-buffering effect.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent applies different functional components to different aspects of the tissue treatment: polyhydric alcohol for moisture retention function and straight-chain alcohols for texture stabilization function. This local quality differentiation allows each component to optimize its specific function without interfering with the other, resolving the texture deterioration issue under humidity variation.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If softening component is mixed into tissue to develop softness, then pulp hydrogen bonds decrease and moisture content increases, but paper strength decreases under high humidity

Engineering Contradiction:

ImprovesoftnessVSAvoidpaper strength under high humidity

Core Design Contradiction:

Stability of the object's compositionVSStrength

Solution Approach 1:

The patent changes the molecular structure parameter of the alcohol components to straight-chain structures with 12-24 carbon atoms. This structural parameter change allows the alcohols to interact with pulp fibers in a way that maintains softness through reduced hydrogen bonding while the specific straight-chain structure provides reinforcement that prevents excessive strength loss under high humidity conditions.

Inventive Principle:

Principle #35Parameter changes

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 solution provides a paper with a unique slippery feeling when pressed, reduces humidity-dependent texture changes, and maintains moist feeling and softness, while ensuring stable and uniform application.

Implementation Method 1

By using the moisturizer, the hygroscopic property and moisture retaining property of paper are enhanced

Methodology Applied

Scientific EffectHygroscopic property: Absorption (physical)

Implementation Method 2

an anionic surfactant (C)... provides to paper a slippery feeling that is specifically developed when pressure is applied on the paper

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Implementation Method 3

suppresses the moisture absorption or the moisture desorption even under the environment of high humidity or low humidity

Methodology Applied

Scientific EffectMoisture suppression: Absorption (physical)

Data Source

PatentUS11242655B2Paper treatment agent

Publication Date: 2022.02.08 MIYOSHI OIL & FAT

AI summary

Provided is a paper treatment agent in which a polyhydric alcohol as a moisturizer has been mixed, and with which paper that has a favorable texture when pressed strongly against the skin as in the case of blowing the nose or the like, suppresses the moisture absorption and moisture desorption even under the environment of high humidity or low humidity, and retains the sense of use, the moist feeling, and the softness can be obtained.