Waste-Biomass Paper Packaging for Biodegradable Food Wraps

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Solution Overview

Problem

The global packaging market faces challenges related to environmental sustainability due to the use of non-biodegradable and non-renewable materials, leading to significant plastic waste and environmental pollution, necessitating the development of sustainable food packaging materials from waste biomass feedstocks.

Innovation Solution

The development of paper packaging materials using fibers derived from waste biomass such as hemp hurds and cocoa pod husks, processed through pulping, refining, and bleaching, with additives like starch and alkyl ketene dimer to enhance properties, resulting in a sheet or web with specific air resistance and basis weight suitable for food packaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional plastic polymers are used for food packaging, then packaging functionality and durability are improved, but environmental sustainability deteriorates due to non-biodegradability and plastic waste accumulation

Engineering Contradiction:

Improvepackaging functionalityVSAvoidenvironmental pollution

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material composition parameters by using waste biomass feedstocks (hemp hurds, cocoa pod husks) instead of traditional plastics, transforming the chemical and physical properties of packaging materials to achieve biodegradability while maintaining protective functionality

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates composite paper packaging materials by combining fibers from different waste biomass sources (hemp hurds and cocoa pod husks) with specific proportions, achieving synergistic effects that provide both structural integrity and environmental sustainability

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If paper-based packaging materials are used to improve environmental sustainability, then biodegradability is improved, but packaging strength and barrier properties deteriorate

Engineering Contradiction:

ImprovebiodegradabilityVSAvoidpackaging strength

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The patent combines fibers from hemp hurds and cocoa pod husks in specific ratios (at least 50% from waste biomass) to create a composite structure that leverages the complementary strengths of different fiber types, achieving adequate packaging strength while maintaining biodegradability

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent applies different processing conditions to different aspects of fiber preparation, such as specific pulping, refining, and bleaching parameters, to optimize local fiber properties for both strength and environmental performance

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If waste biomass feedstocks are used to improve sustainability, then environmental friendliness is improved, but manufacturing complexity increases due to pulping, refining, and bleaching processes

Engineering Contradiction:

Improveenvironmental friendlinessVSAvoidmanufacturing process complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent utilizes waste biomass feedstocks that require minimal pre-processing, leveraging the natural properties of hemp hurds and cocoa pod husks to reduce the need for complex manufacturing steps while maintaining sustainability benefits

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent optimizes processing parameters (pulping conditions, refining intensity, bleaching sequences) to balance manufacturing complexity with environmental benefits, using modified conditions that simplify operations while achieving desired fiber quality

Inventive Principle:

Principle #35Parameter changes

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 solution provides a sustainable food packaging material with enhanced properties, reducing environmental impact while maintaining functionality, and addressing the need for biodegradable alternatives to traditional plastics.

Implementation Method 1

pulping, refining, and bleaching the waste biomass feedstocks using modified pulping and/or bleaching conditions

Methodology Applied

Scientific EffectChemical pulping: Chemical Bonding

Implementation Method 2

pulping, refining, and bleaching the waste biomass feedstocks

Methodology Applied

Scientific EffectMechanical refining: Mechanical Force

Implementation Method 3

pulping, refining, and bleaching the waste biomass feedstocks using modified pulping and/or bleaching conditions

Methodology Applied

Scientific EffectOxidation: Oxidation

Data Source

PatentUS12553184B2Hemp paper packaging material for foodstuff

Publication Date: 2026.02.17 WM WRIGLEY JR CO

AI summary

Sustainable paper-based packaging materials, e.g., paper-based food packaging materials, are described. The packaging materials are based on paper formed from fiber derived from waste biomass, such as hemp hurds, mixes containing hemp hurds and hemp bast fibers, bagasse, and cocoa pod husks. Also described are methods of making the packaging materials. The methods can include environmentally friendly pulping and/or bleaching processes.