Detachable Character Patch With Velcro and Functional Layers

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Solution Overview

Problem

Existing character patches are difficult for unskilled individuals to attach and detach, reduce manufacturing efficiency, and often result in wrinkles or defective products due to sewing, limiting design changes and consumer interest.

Innovation Solution

A detachable character patch with a front surface printed with 3D or dynamic images and a back surface made of velcro, comprising multiple layers with functional components like antibacterial or deodorizing agents, allowing easy attachment and detachment to various items.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If character patches are integrally attached to clothes, bags, hats, etc. through stitching by sewing, then the character patch is securely fixed, but it is difficult for unskilled people to attach character patches and work efficiency is reduced

Engineering Contradiction:

Improveattachment strengthVSAvoidease of attachment

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The character patch is divided into two separate parts: a reusable base patch with functional components and a detachable character patch with the design element. The base patch is attached to the garment through stitching, while the character patch can be easily attached and detached using velcro fastening. This segmentation allows unskilled users to easily change designs while maintaining secure attachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A velcro fastening system is introduced as an intermediary between the base patch and the character patch. This intermediary mechanism enables easy attachment and detachment without requiring sewing skills, while still providing sufficient holding strength for normal use.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If character patches are integrally attached to clothes, bags, hats, etc. through stitching by sewing, then the character patch is securely fixed, but manufacturing efficiency is reduced due to the hassle of stitching and attaching

Engineering Contradiction:

Improveattachment strengthVSAvoidmanufacturing efficiency

Core Design Contradiction:

StrengthVSProductivity

Solution Approach 1:

The character patch assembly is segmented into a base patch and a detachable character patch. The base patch with functional components is pre-attached to garments during manufacturing, while the character patches can be separately produced and attached later. This reduces manufacturing complexity and improves production efficiency.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base patch with functional components is prepared in advance and attached to the garment during manufacturing. The character patches are separately prepared and can be attached later without requiring complex stitching operations, thereby improving manufacturing efficiency.

Inventive Principle:

Principle #10Preliminary action

3Strength

If character patches are attached by sewing, then the character patch is securely fixed, but wrinkles are formed on the character patch and defective products that are not smoothly attached often occur

Engineering Contradiction:

Improveattachment strengthVSAvoidattachment quality

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The traditional mechanical stitching system is replaced with a velcro fastening system. This substitution eliminates the need for needle and thread, preventing wrinkles and attachment defects while maintaining secure fixation. The velcro system allows for smooth attachment without the mechanical stress that causes fabric distortion.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Strength

If character patches are integrally attached by sewing, then the character patch is securely fixed, but it is difficult to change the character after attaching

Engineering Contradiction:

Improveattachment strengthVSAvoiddesign changeability

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The character patch is segmented into a permanent base patch and a replaceable character patch. The base patch remains attached to the garment, while the character patch can be easily removed and replaced with different designs. This enables frequent design changes while maintaining a secure attachment system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment system is made dynamic by introducing a detachable character patch that can be easily attached and removed. This allows the design to change over time while the base patch remains in place, providing both stability and flexibility.

Inventive Principle:

Principle #15Dynamics

5Ease of manufacture

If various patterns are embroidered on the front surface of the hat by using paints or printing, then the hat has decorative value, but it is not enough to attract attention and express unique personality, and design changes cannot be brought about

Engineering Contradiction:

Improvedecoration applicationVSAvoiddesign flexibility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The hat decoration is segmented into a base hat and detachable character patches. The character patches can be easily attached and removed, allowing users to change designs frequently. This provides both the ease of manufacture of printed decorations and the design flexibility of interchangeable elements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hat decoration system is made dynamic through the use of detachable character patches. Users can change the design by attaching different character patches to the same base hat, enabling frequent design changes without requiring re-manufacturing of the hat itself.

Inventive Principle:

Principle #15Dynamics

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

Enables easy and frequent design changes, enhances user satisfaction, and provides functional benefits such as antibacterial and deodorizing properties, improving usability and appeal across various applications.

Implementation Method 1

a back surface that is configured of a detachable velcro

Methodology Applied

Scientific EffectVelcro: Velcro

Implementation Method 2

a second layer having a front surface that is made of velcro capable of being attached to the velcro of the first layer

Methodology Applied

Scientific EffectMechanical interlocking: Mechanical Fastener

Data Source

PatentUS20250344788A1Detachable character patch and method for decorating using the same

Publication Date: 2025.11.13 KIM SANG JIN

AI summary

A detachable character patch has a front surface printed with various figures, characters, marks, characters as 3D or dynamic images, and a back surface configured of a detachable material. The functional detachable character patch has the first layer having the front surface that includes the image and the back surface that is made of the Velcro, the second layer having the front surface that is made of velcro capable of being attached to the velcro of the first layer and the back surface to which the layer including a functional liquid component attached, and the third layer having the front surface that is the adhesive surface attached to the back surface of the second layer and the back surface that is configured of the base patch for mounting on the application target includes the functional components such as the volatile antibacterial component, the aromatic component, or the deodorizing component.