Deodorant Paper Manufacturing via Sequential Particle Ejection
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Solution Overview
Problem
Existing methods for manufacturing deodorant paper face issues such as soiling of papermaking apparatuses, uneven distribution of deodorant particles, and reduced paper strength due to the mixing of pulp fibers and carbon particles, leading to quality instability and tearing of the paper.
Innovation Solution
A deodorant-paper manufacturing method involving dehydration and drying of paper stock with sequential ejection of particle-containing liquid from multiple points to ensure uniform distribution of deodorant particles, preventing fiber damage and ensuring paper strength through controlled moisture absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carbon particles are mixed into white water before papermaking, then deodorant effect is achieved, but the papermaking apparatus becomes soiled and paper quality becomes unstable
Solution Approach 1:
The patent extracts the carbon particles from the white water mixing process and applies them separately through spraying or padding after the paper stock is formed. This separation eliminates the soiling of papermaking apparatus while maintaining the deodorant effect in the finished paper product.
Solution Approach 2:
The patent applies deodorant particles to the paper stock before the paper is completed, using preliminary spraying or padding on the formed paper stock. This preliminary action allows uniform distribution of particles without interfering with the papermaking process equipment.
2Reliability
If carbon particles are sprayed onto paper fibers in wire part, then deodorant effect is achieved, but paper strength is reduced and fibers are damaged
Solution Approach 1:
The patent performs the ejection of particle-containing liquid after the paper stock has been formed and transferred to the press part, rather than in the wire part. This timing allows the paper structure to be more stable, preventing fiber damage while achieving uniform particle distribution.
Solution Approach 2:
The patent applies particle-containing liquid through multiple ejecting parts arranged in a line, creating localized deposition zones that ensure uniform distribution without overwhelming any single area, thus maintaining paper strength while achieving deodorant effect.
3Quantity of substance
If carbon particles are mixed into slurry before papermaking, then deodorant effect is achieved, but uneven distribution of particles occurs
Solution Approach 1:
The patent divides the particle application into multiple ejecting parts arranged in a line, each contributing to the overall uniform distribution. This segmentation allows precise control of particle rate while achieving even distribution across the paper width.
Solution Approach 2:
The patent uses multiple ejecting parts that can be controlled independently to achieve the desired particle rate. The sequential ejection from multiple points allows for better control and uniformity of particle distribution compared to single-point application.
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
This method allows for uniform deposition of deodorant particles at a desired rate, preventing tearing and maintaining stable paper quality, even in rolled form, by controlling moisture absorption and distribution.
Implementation Method 1
the particle-containing liquid is sequentially ejected from the respective ejecting parts with a predetermined time difference so that unevenness in or damage to fibers in the paper stock does not occur
Implementation Method 2
ensuring sufficient paper strength by controlling moisture absorption
Implementation Method 3
a first step in which belt-like paper stock that is made into paper and placed or deposited on conveyance means in a wire part is dehydrated
Implementation Method 4
a third step in which the belt-like paper stock dehydrated in the second step is dried by drying means in a dryer part
Data Source
AI summary
A deodorant-paper manufacturing method includes: a first step in which belt-like paper stock placed on a wire cloth in a wire part is dehydrated; a second step in which the dehydrated belt-like paper stock is transferred to conveyance means in a press part to be further dehydrated; and a third step in which the dehydrated belt-like paper stock is dried by drying means in a dryer part. Any one of the first to third steps includes a fourth step in which particle-containing liquid having deodorant effect is ejected from ejecting parts. In the fourth step, the ejecting parts are arranged in a line such that the particle-containing liquid is deposited in the width direction of the belt-like paper stock, and the particle-containing liquid is sequentially ejected from the ejecting parts with a predetermined time difference so that unevenness in or damage to fibers in the paper stock does not occur.