Heating Device for Aerosol Wrapping Marking Drying

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Solution Overview

Problem

Existing methods for applying markings to aerosol-generation product wrapping materials, such as cigarette paper, face issues with slow drying times, leading to smudging and contamination of equipment, which affects printing accuracy and production efficiency.

Innovation Solution

A method involving the use of a printing unit module to apply a substance to the wrapping material, followed by a heating device that quickly and accurately raises the temperature of the wrapping material to facilitate rapid drying, reducing contamination and improving printing accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional printing methods are used to apply substance to wrapping material, then the marking can be applied, but the substance does not dry quickly enough and smudges on contact with guide rollers

Engineering Contradiction:

Improveprinting accuracyVSAvoiddrying time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The heating device is positioned immediately after the printing unit to begin drying the substance right after application. This preliminary heating action prevents smudging by removing moisture before the wrapped article contacts guide rollers, thus resolving the contradiction between quick drying and printing accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention changes the temperature parameter of the wrapping material by introducing a heating device that raises the temperature to accelerate evaporation of the applied substance. This parameter change (temperature increase) enables quick drying without affecting print quality, resolving the time-precision contradiction.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the wrapping material is heated to dry the substance quickly, then drying speed improves, but the bond between substance and wrapping material may be affected

Engineering Contradiction:

Improvedrying speedVSAvoidbond strength

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The heating device is equipped with sensors and control systems that monitor the drying process and adjust heating parameters in real-time. This feedback mechanism ensures the temperature remains within optimal ranges to accelerate drying while preventing excessive heat that could damage the bond between substance and wrapping material.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The invention optimizes the heating parameters (temperature, duration, heating rate) to achieve quick drying while maintaining bond integrity. By carefully controlling these parameters, the system resolves the contradiction between drying speed and bond reliability.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the substance is allowed to dry slowly without heating, then the bond is preserved, but the substance smudges and contaminates production equipment

Engineering Contradiction:

Improvebond integrityVSAvoidequipment contamination

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The heating device performs preliminary drying action immediately after printing, removing the harmful smudging effect before the wrapped article contacts guide rollers and other equipment. This preliminary intervention prevents contamination while maintaining bond integrity through controlled heating.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention converts the potential harm of heat (which could damage the bond) into a benefit by using controlled, localized heating that accelerates drying without affecting bond strength. The heat, when properly controlled, becomes a tool to prevent contamination rather than a source of damage.

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

The method ensures the substance dries quickly without damaging the wrapping material or affecting the bond, reducing equipment contamination and enhancing printing quality and throughput.

Implementation Method 1

heating the wrapping material and the substance applied to at least one surface of the wrapping material in a heating device

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

the applied substance can be dried after application, whereby the temperature of the wrapping material can be regulated quickly and accurately

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4374712A1Method for applying a marking to a wrapping material for an aerosol-generation article

Publication Date: 2024.05.29 JT INTERNATIONAL SA

Figure 1~4

AI summary

The present invention is directed to a method for applying at least one marking to a wrapping material for an aerosol-generation article. This method comprising the steps of providing a wrapping material in sheet or web form; guiding the wrapping material along a transport path to a printing unit module by support rollers; applying a substance to at least one surface of the wrapping material by the printing unit module; and heating the wrapping material and the substance applied to at least one surface of the wrapping material in a heating device.