Isomalt Edible Packaging Process for Bubble-Free Transparency

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Solution Overview

Problem

Current food packaging materials are largely disposable, non-biodegradable, and pose hygiene and breakage issues, lacking in transparency and uniformity for visual appeal, which restricts their application as versatile and aesthetically pleasing containers for diverse food products.

Innovation Solution

A process involving the melting and tempering of isomalt in an extruder, followed by casting or injection molding, and a varnishing step to produce transparent, biodegradable packaging materials with controlled crystallinity and water content, allowing for various configurations and sizes, ensuring bubble elimination and maintaining malleability and ductility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If disposable packaging materials (plastic, cardboard, paper, glass) are used, then packaging functionality is provided, but hygiene management becomes cumbersome and breakage issues occur

Engineering Contradiction:
Improvehygiene managementVSAvoidpackaging management
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent changes the material parameter from conventional disposable materials to isomalt-based edible material, which is biodegradable and eliminates hygiene management issues while maintaining packaging functionality

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies the disposable principle by creating single-use edible packaging that is discarded after use, but improves upon conventional disposables by using biodegradable isomalt material that eliminates environmental pollution and hygiene concerns

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Illumination intensity

If conventional packaging materials are used, then packaging is provided, but transparency and uniform visual appearance are lacking

Engineering Contradiction:
ImprovetransparencyVSAvoidvisual uniformity
Core Design Contradiction:
Illumination intensityVSManufacturing precision

Solution Approach 1:

The patent changes the material composition to isomalt-based material and controls processing parameters (temperature 150-160°C, pressure, tempering) to achieve both transparency and visual uniformity that conventional materials cannot provide

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses an extruder with pressure control to eliminate bubbles and air pockets during material processing, ensuring uniform visual appearance and transparency in the final packaging product

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Temperature

If isomalt material is processed at high temperature, then melting and forming is achieved, but bubble formation and browning occur

Engineering Contradiction:
Improvemelting temperatureVSAvoidbubbles and browning
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent optimizes the temperature parameter to a specific range (150-160°C) that is high enough to melt and form the isomalt material but low enough to prevent bubble formation and browning, achieving the desired balance between processing and quality

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses continuous tempering and pressure application during processing to gradually eliminate bubbles and maintain material homogeneity, preventing defect formation while achieving proper forming

Inventive Principle:
Principle #20Continuity of useful action

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 process enables the production of transparent, edible, and biodegradable packaging with uniform visual appearance and high thermal resistance, suitable for diverse food products, enhancing product presentation and usability across various sectors while maintaining stability and non-brittleness.

Implementation Method 1

melting in an extruder of the material with a temperature rise from 80°C to 160°C, preferably from 150°C to 160°C

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

melting in an extruder of the material with a temperature rise from 80°C to 160°C

Methodology Applied
Scientific EffectMelting: Melting

Implementation Method 3

tempering so as to obtain the material in its stable crystalline form

Methodology Applied
Scientific EffectCrystallisation: Crystallisation

Implementation Method 4

said tempering step comprising a heating step at a temperature of 160°C for 3 minutes, followed by a cooling phase at a temperature of 120°C to 130°C

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 5

followed by a cooling phase at a temperature of 120°C to 130°C

Methodology Applied
Scientific EffectCooling: Cooling

Implementation Method 6

casting or injection into molds

Methodology Applied
Scientific EffectInjection: Injector

Implementation Method 7

the introduced material is advantageously bubbling due to the pressure inside the extruder and the resulting expansion

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentEP2750521B1Process for the preparation of transparent comestible materials, useful as recipients for food products and their applications
Publication Date: 2019.08.07 BOUAZIZ HASSOUNA

AI summary

The invention relates to a method for producing a food material essentially consisting of isomalt, characterised in that it includes the steps of: extruding and melting the material by raising the temperature to 80ºC to 160ºC, preferably to 150ºC to 160ºC; tempering so as to obtain the material in the stable crystalline form thereof and to eliminate the bubbles in the material; and pouring or injecting into moulds. The resulting material can be used as a container.