Biodegradable Sequins Using PLA and Eco-Decorative Composites

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Solution Overview

Problem

Conventional sequins are made from toxic dyes, harmful additives, and non-biodegradable plastics, leading to environmental damage and quality issues such as flimsiness, along with inefficient and wasteful manufacturing processes.

Innovation Solution

Development of biodegradable sequins composed of a polymeric component, such as polylactic acid (PLA), combined with environmentally-friendly decorative components, using methods that include mixing, applying, and cutting these components to form sustainable sequins.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional sequins are made from non-biodegradable plastics and toxic dyes, then the sequins have durable structure and decorative appearance, but they cause environmental damage and remain in landfills for thousands of years

Engineering Contradiction:

Improveenvironmental damageVSAvoidbiodegradability

Core Design Contradiction:

Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The patent changes the material composition parameters from conventional non-biodegradable plastics to biodegradable polymers such as polylactic acid (PLA), polyhydroxyalkanoates (PHA), and polyglycolic acid (PGA). These parameter changes enable the sequins to decompose naturally in the environment while maintaining their structural integrity during use, thereby resolving the contradiction between durability and biodegradability.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs composite material structures combining biodegradable polymer matrices with natural or biodegradable decorative components. This allows the sequins to achieve both the required structural stability and environmental compatibility, as the composite structure enables natural degradation while maintaining decorative properties during the product lifecycle.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If conventional sequins are made from harmful additives, then the sequins achieve desired decorative properties and color, but they leach microplastics and toxic chemicals into the water supply

Engineering Contradiction:

Improvetoxic chemical leachingVSAvoiddecorative component concentration

Core Design Contradiction:

Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The patent adopts a disposable approach by using biodegradable materials that can be safely discarded after use. The sequins are designed to decompose completely in the environment, eliminating the need for harmful additives that would persist in the ecosystem. This principle allows the decorative components to be present in sufficient quantities for aesthetic effect while ensuring complete biodegradation without toxic leaching.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Manufacturing precision

If conventional sequins are made using expensive and complex equipment, then the manufacturing precision and quality are improved, but the manufacturing cost and complexity increase

Engineering Contradiction:

Improvesequin shape precisionVSAvoidequipment complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical sequencing and assembly equipment with simpler direct-forming processes. By using techniques such as extrusion, injection molding, or even hand-forming of biodegradable polymer materials, the manufacturing process eliminates the need for expensive multi-step mechanical sequences while maintaining acceptable precision for decorative applications.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If conventional sequins are made using current manufacturing methods, then the production efficiency is maintained, but a large amount of wasted plastic material is generated

Engineering Contradiction:

Improvesequin production efficiencyVSAvoidwasted plastic material

Core Design Contradiction:

ProductivityVSLoss of substance

Solution Approach 1:

The patent implements waste recovery by designing manufacturing processes that minimize material loss and enable reuse of biodegradable polymer scraps. Since the materials are biodegradable, off-cuts and waste can be composted or recycled into new sequins, eliminating the traditional waste problem associated with conventional plastic manufacturing while maintaining production efficiency.

Inventive Principle:

Principle #34Discarding and recovering

Data Source

PatentUS20250017300A1Sustainable sequins and paillettes

Publication Date: 2025.01.16 CIARLA JESSICA

AI summary

Embodiments of the present disclosure pertain to biodegradable sequins that include: a polymeric component; and a decorative component combined with the polymeric component. In some embodiments, the biodegradable sequin has a dimmed appearance. Additional embodiments of the present disclosure pertain to methods of making the biodegradable sequins of the present disclosure by mixing a polymeric component with a decorative component to form a mixture; and applying the mixture onto a surface to form the biodegradable sequin. In some embodiments, the methods of the present disclosure also include a step of cutting the formed sequins into a desired shape.