Modified Pineapple Cellulose Fibers With Light Color Retention

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Solution Overview

Problem

Conventional cellulose pretreatment processes change the color of cellulose from light to dark, limiting color options and necessitating large amounts of additives for color modification in composite materials made with cellulose and resins.

Innovation Solution

Utilizing modified pineapple cellulose, which is not subjected to carbonization and is combined with a thermoplastic resin, such as nylon or polybutylene terephthalate, to create long fibers that maintain a light color without the need for excessive additives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If conventional cellulose pretreatment process is used, then mixing effect of cellulose and resins is enhanced, but color of cellulose changes from light to dark

Engineering Contradiction:

Improvemixing effectVSAvoidcolor

Core Design Contradiction:

Stability of the object's compositionVSIllumination intensity

Solution Approach 1:

The patent changes the chemical parameters of cellulose through oxidation treatment with sodium chlorite solution, modifying the cellulose structure to improve resin compatibility while maintaining light color. This parameter change approach transforms the cellulose properties to achieve both good mixing effect and color retention simultaneously

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If cellulose is subjected to carbonization treatment, then dispersibility in resin is improved, but color modification requires large amounts of additives

Engineering Contradiction:

ImprovedispersibilityVSAvoidadditives

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

The patent employs chemical oxidation to modify cellulose parameters, creating surface groups that enhance resin compatibility and dispersibility without requiring extensive color modification additives. This approach changes the chemical state of cellulose to achieve both dispersibility and color retention

Inventive Principle:

Principle #35Parameter changes

3Illumination intensity

If modified pineapple cellulose is used, then color of long fibers is maintained as light, but production complexity increases

Engineering Contradiction:

ImprovecolorVSAvoidproduction process

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The patent utilizes pineapple leaf waste, an agricultural byproduct, as the raw material source. This self-service approach converts waste material into valuable fiber products, maintaining light color while reducing the need for extensive processing and additives, thereby simplifying the overall production system

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20260022499A1Long fiber and fabric therefrom

Publication Date: 2026.01.22 CHEN CHIEN CHUAN

AI summary

A long fiber includes a body extending along a length direction, and the material of the body includes pineapple cellulose and a thermoplastic resin. The pineapple cellulose is modified pineapple cellulose. The disclosure also provides a fabric. Because the pineapple cellulose of the creation is modified pineapple cellulose, the colors of the long fibers and fabrics therefrom are not limited, and there is no need to use a large amount of additives to change the colors of the long fibers and fabrics therefrom.