Sheet Binding Moisture Control for Stronger Bound Margins

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Solution Overview

Problem

Existing binding technologies face issues with reduced adhesion strength between bound sheets due to excessive moisture in the bound part, leading to potential release of the binding.

Innovation Solution

A binding processing device that includes a binding processing element and a processor to control moisture supply to the bound part before binding, utilizing a moisture regulating mechanism to maintain a specific moisture ratio within the bound part, ensuring optimal adhesion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If moisture is supplied to the bound part before binding processing, then adhesion strength between sheets is improved, but excessive moisture causes adhesion strength to decrease and binding to release

Engineering Contradiction:

Improveadhesion strengthVSAvoidbinding stability

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The invention controls the moisture content parameter within a specific range (5% to 20%) to optimize adhesion strength. By precisely adjusting and maintaining moisture content within this boundary, the system achieves strong adhesion without the negative effects of excessive moisture that would cause binding release.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system incorporates a moisture content detection unit that continuously monitors the moisture content in the bound part and provides feedback to the control unit. This feedback mechanism enables real-time adjustment of moisture supply to maintain optimal moisture levels for adhesion strength while preventing excessive moisture accumulation.

Inventive Principle:

Principle #23Feedback

2Strength

If moisture content in the bound part is increased to improve adhesion, then sheet bonding is enhanced, but binding reliability deteriorates due to potential release

Engineering Contradiction:

Improveadhesion strengthVSAvoidbinding release

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The invention identifies and controls the moisture content parameter within an optimal range (5% to 20%) to achieve strong adhesion while preventing binding release. This parameter control transforms the harmful effect of excessive moisture into a beneficial controlled condition.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system converts the potentially harmful effect of moisture (which can cause binding release when excessive) into a beneficial factor by precisely controlling it within the optimal range. The moisture is supplied in controlled amounts to enhance adhesion without reaching levels that would cause harm.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

Enhances the adhesion strength between bound sheets by maintaining a moisture ratio within a specific range, reducing the likelihood of binding release and improving the durability of the sheet bundle.

Implementation Method 1

a preprocessing step of supplying and penetrating moisture to a binding margin region of each sheet of paper

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS20260082005A1Binding processing device

Publication Date: 2026.03.19 FUJIFILM BUSINESS INNOVATION CORP

AI summary

A binding processing device includes: a binding processing element that advances a binding tooth to a sheet to perform binding processing of the sheet; and a processor that performs control of drying a bound part of the sheet after the binding processing of the sheet by the binding processing element is performed.