Bio-based Toner Oil Additive Moisture Sensitivity

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Solution Overview

Problem

Bio-based toner compositions face challenges with moisture sensitivity, leading to low charge and increased processing costs due to water absorption by bio-resins, limiting their bio-content in toners.

Innovation Solution

Incorporating hydrophobic oil additives, such as silicone-based or fluorinated oils, into bio-based toner compositions to reduce moisture sensitivity and enhance A zone charge, allowing for higher bio-content without compromising performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If bio-based resin is used in toner composition, then sustainability and environmental friendliness are improved, but moisture sensitivity and charge stability deteriorate

Engineering Contradiction:
ImprovesustainabilityVSAvoidcharge stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent combines bio-based resin with conventional resin in a composite toner formulation. This allows the toner to achieve both sustainability benefits from the bio-based component and performance reliability from the conventional component, resolving the contradiction between environmental friendliness and charge stability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent modifies the chemical composition parameters of the resin blend by controlling the ratio of bio-based to conventional resin and adjusting the molecular weight and functional groups of the bio-based resin to reduce moisture sensitivity while maintaining sustainability benefits.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If bio-based resin content is increased, then sustainability is improved, but moisture absorption and processing difficulty worsen

Engineering Contradiction:
Improvebio-contentVSAvoidprocessing difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By creating a composite resin system combining bio-based and conventional resins, the patent enables higher bio-based content while maintaining processability. The conventional resin component acts as a processing aid, reducing the manufacturing difficulties associated with high bio-based content.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent introduces an intermediary substance (such as a plasticizer or processing aid) that facilitates the processing of bio-based resin while maintaining its sustainability benefits. This intermediary component enables easier manufacturing at higher bio-based concentrations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If hydrophobic oil additives are added to reduce moisture sensitivity, then charge stability is improved, but formulation complexity worsens

Engineering Contradiction:
Improvehumidity sensitivityVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent optimizes the concentration and type of hydrophobic oil additives by controlling their chemical composition and amount in the toner formulation. This parameter optimization reduces humidity sensitivity while minimizing the increase in formulation complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses small amounts of hydrophobic oil additives that serve their protective function during the toner's operational life and then degrade or evaporate, minimizing their long-term impact on formulation complexity while providing effective moisture protection.

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

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 use of oil additives increases A zone charge by 30-50% and reduces humidity sensitivity, enabling bio-based toners to achieve higher bio-mass content while matching the performance of conventional toners.

Implementation Method 1

the present bio-based toner compositions comprise greater than 20% bio-resins but avoid the moisture sensitivity issues that bio-resins are prone to by also including one or more oil additives

Methodology Applied
Scientific EffectHydrophobic effect: Hydrophobe

Data Source

PatentUS9329512B1Bio-based toner compositions
Publication Date: 2016.05.03 XEROX CORP
  • US9329512B1 patent drawing
  • US9329512B1 patent drawing
  • US9329512B1 patent drawing

AI summary

Bio-based toner compositions that exhibit excellent performance and provide high print quality. More specifically, the present bio-based toner compositions comprise greater than 20% bio-resins but avoid the moisture sensitivity issues that bio-resins are prone to by also including one or more oil additives.