Transformable Foldable Paper Bag With Perforated Dining Panels

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Solution Overview

Problem

Traditional paper bags provide inadequate surface area for comfortable consumption of food and are prone to napkins getting soaked, limiting their utility as dining utensils for fast-food consumption.

Innovation Solution

A foldable paper bag design featuring perforated panels with specific perforation patterns and creases, allowing transformation into a tubular cavity with increased surface area and functionality as a dining utensil.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If traditional paper bags are used for packaging fast food, then cost-effectiveness and environmental friendliness are improved, but the surface area for comfortable consumption is inadequate

Engineering Contradiction:
Improvesurface area for consumptionVSAvoidbag structure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The paper bag is divided into multiple panels (front panel, back panel, two side panels) connected by perforated sections. These panels can be separated along the perforations to create additional functional surfaces including napkin holders and dining surfaces, effectively increasing the usable surface area while maintaining a compact folded structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bag structure utilizes three-dimensional folding and panel arrangement to maximize surface area within a compact form. When folded for carrying, the panels are arranged vertically; when deployed for dining, they unfold to create horizontal dining surfaces and vertical napkin holders, effectively utilizing spatial dimensions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If traditional paper bags include napkins, then basic wiping function is provided, but the napkins are easily soaked and the bag makes a poor dining utensil

Engineering Contradiction:
Improvedining utilityVSAvoidnapkin soaking resistance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The bag is segmented into distinct functional zones: food containment area, napkin holder sections (created by separating panels along perforations), and dining surfaces. This segmentation allows napkins to be held in dedicated elevated sections away from food sources, reducing soaking risk while providing dedicated dining areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The perforated panels and crease lines act as intermediaries that allow controlled separation of bag sections. Users can separate the napkin holder panels from the main body along perforations, creating a physical barrier that protects napkins from food-related moisture while maintaining easy access.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the paper bag is designed with multiple panels and perforations for transformation, then dining functionality is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvetransformable dining functionalityVSAvoidmanufacturing process simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The bag structure uses pre-defined perforated sections and crease lines that divide the flat sheet into manageable panels. These segmentation lines serve dual purposes: they guide the folding/ unfolding transformation for dining use and provide clear cutting/creasing guides for manufacturing, actually simplifying the manufacturing process despite the complex final form.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses standardized perforation patterns and crease configurations that can be easily programmed into die-cutting and creasing equipment. By defining specific geometric patterns (perforated panels with predetermined hole arrangements), the manufacturing process becomes more automated and precise, offsetting the apparent complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4613667A1A transformable foldable paper bag
Publication Date: 2025.09.10 AU KA FAI KINSEN
  • EP4613667A1 patent drawingFigure 1
  • EP4613667A1 patent drawingFigure 2
  • EP4613667A1 patent drawingFigure 3

AI summary

A foldable paper bag is provided. The foldable paper bag has two perforated panels being parallel. Every perforated panel has perforations arranged in a vertically flipped "Y" shape. When the foldable paper bag is in an upright position, every arm of the vertically flipped "Y" shape is connected to one of the vertical edges of the perforated panel, and the leg of the vertically flipped "Y" shape is vertically extend towards an opening of the foldable paper bag. The provided foldable paper bag can be used as a clean, tidy, and disposable transformable container for food and dining utensil.