Tubular Packaging Casing Adhesive Flavoring Coating

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Solution Overview

Problem

Existing methods for coating tubular food packaging casings with flavorings, such as spices, are inefficient and unreliable, often requiring flat film forms that need to be dried and reshaped, leading to time-consuming and energy-intensive processes, and are prone to flaking during handling.

Innovation Solution

A method where the tubular packaging casing is coated with adhesive and then guided through squeezing zones to form an inflated sack, allowing particulate flavorings to accumulate and adhere evenly, with an air cushion maintaining the flavorings' distance from the upper squeezing zone to prevent lumps, enabling a stable and dense coating without the need for intermediate drying.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If flat film is coated with adhesive and flavorings, then coating is possible, but intensive drying is required which is time-consuming and energy-consuming

Engineering Contradiction:

Improvecoating stabilityVSAvoiddrying time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Instead of coating flat film and then forming into tube, the patent inverts the sequence by forming the tubular casing first and then coating the inside surface. This allows the adhesive to be applied directly to the final product geometry, eliminating the need for subsequent drying and reshaping operations.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The tubular casing is formed into its final cylindrical shape before coating takes place. This preliminary formation of the correct geometry allows direct coating without requiring later drying and reshaping steps, saving time and energy.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If flat film is coated with adhesive and flavorings, then coating is possible, but intensive drying is required which is energy-consuming

Engineering Contradiction:

Improvecoating stabilityVSAvoiddrying energy

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The patent inverts the conventional sequence by forming the tubular casing before coating, allowing direct application of adhesive and flavorings to the inside surface of the finished tube. This eliminates the energy-intensive drying step required when coating flat film beforehand.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of manufacture

If adhesive is applied to moist film, then coating is possible, but processing is impossible due to hygiene and work-related reasons

Engineering Contradiction:

Improvecoating feasibilityVSAvoidhygiene issues

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

Instead of coating flat film in a wet state and then drying, the patent forms the tubular casing first and applies adhesive to the inside surface. This allows the adhesive to be applied to a stable, formed structure rather than to flexible, moist flat film, resolving hygiene and handling issues.

Inventive Principle:

Principle #13The other way round (Inversion)

4Productivity

If conventional coating method is used, then processing is possible, but local flaking of spices occurs during gathering

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidcoating stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent inverts the coating sequence by coating the inside of the formed tubular casing rather than coating flat film before forming. This ensures the coating adheres to the final product geometry, preventing flaking during subsequent gathering and processing operations.

Inventive Principle:

Principle #13The other way round (Inversion)

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 ensures a reliable and high-density coating of aromatic substances on the packaging casing, allowing for efficient processing and storage, and eliminates the need for intermediate drying, enabling direct further processing in automatic machines without risk of germ formation or flaking.

Implementation Method 1

an air cushion above, causes them to accumulate intensively on the inside of the packaging casing

Methodology Applied

Scientific EffectAir cushion: Air Lubrication

Implementation Method 2

coating the inside of a tubular packaging casing for foodstuffs with an adhesive

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 3

the compression of the packaging casing taking place in the upper squeezing zone causes a stable connection between the adhesive layer and the aroma particles

Methodology Applied

Scientific EffectCompression: Compression

Data Source

PatentEP2436268B1Process and device for manufacturing a packaging wrapper for foodstuffs

Publication Date: 2016.03.23 WORLD PAC INT

Figure 1
Figure 2

AI summary

The method involves wetting the inside of lower end of packaging sleeve (2) with adhesive e.g. glue (3). The packaging sleeve coated with adhesive is fed from a lower squeezing zone (5) to an upper squeezing zone (8), such that upper and lower squeezing zones are spaced apart from preset distance. A desired flavor substances (6) and air (7) are introduced into packaging sleeve while passing the packaging sleeve coated with adhesive from lower squeezing zone to upper squeezing zone. An independent claim is included for device for processing tubular packing sleeve for packaging food product.