Tissue Paper Embosser Dispenser for Targeted Coil Stiffening
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Solution Overview
Problem
Existing systems for stiffening paper rolls to prevent deformation during core extraction result in machine contamination and frequent shutdowns due to the scattering of dispensed substances like glue.
Innovation Solution
An embosser system with dispensers positioned within the embossing units to apply a stiffening substance between paper plies before joining, synchronized with the rewinding process to ensure clean operation and targeted application of the stiffening substance only to the inner coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stiffening substance is dispensed on the paper by nozzles in the rewinding machine, then the innermost coils are reinforced and remain compact during core extraction, but the rewinding machine becomes contaminated and requires frequent shutdowns for cleaning
Solution Approach 1:
The dispensing function is extracted from the rewinding machine and integrated into the embosser system. The embosser now includes dispensers that apply stiffening substance to the paper plies during the embossing operation, separating the stiffening function from the winding function and preventing contamination of the rewinding machine
Solution Approach 2:
The stiffening substance dispensing is merged with the embossing operation. The embosser simultaneously performs embossing and applies the stiffening substance to the paper plies, combining two functions into one integrated system that eliminates the need for separate dispensing equipment
2Manufacturing precision
If the stiffening substance is dispensed continuously, then the paper plies are consistently reinforced, but the machine requires frequent cleaning shutdowns due to substance scattering
Solution Approach 1:
The embosser operates continuously while simultaneously performing embossing and stiffening substance application. The integrated system maintains continuous production without interruption for cleaning, as the substance is precisely applied only where needed during the embossing cycle
Solution Approach 2:
The stiffening substance is applied locally and precisely to specific areas of the paper plies during embossing. The dispensers target only the regions requiring reinforcement, preventing unnecessary scattering and contamination while maintaining consistent reinforcement quality
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
Prevents paper deformation and maintains machine cleanliness by applying the stiffening substance precisely and continuously, reducing the need for machine shutdowns and ensuring clean operation.
Implementation Method 1
The stiffening substance is dispensed on the paper by means of a series of nozzles... which stiffens the paper on it... due to stiffer coils which, when the core is extracted, remain more compact
Data Source
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AI summary
An embosser (100) is described, comprising a first embossing unit (10) configured to emboss a first ply (P) of tissue paper, wound between a first upper roller (11) and a first lower roller (12); a second embossing unit (20) configured to emboss a second ply (P') of tissue paper, wound between a second upper roller (21) and a second lower roller (22); the first lower roller (12) and the second upper roller (21) are at least close defining a coupling zone (C) of the plies (P, P'); at least one dispenser (30) configured to dispense a predetermined amount of a stiffening substance on a predetermined area A of the embossed ply (P, P'), placed upstream of the coupling zone (C). A converting line (300) for processing tissue paper and a process to stiffen a ply (P, P') of tissue paper to be coil-winded around a core to be extracted are further described.