Label Cloth Laminate for Sublimation Transfer Without Adhesive Seepage
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Solution Overview
Problem
Conventional cloth materials for marking suffer from issues such as the transfer adhesive layer melting and seeping into the surface during sublimation transfer, leading to poor durability and peeling of labels, especially when subjected to washing and abrasion.
Innovation Solution
A cloth material structure comprising a label cloth with an intermediate layer of resin having a softening point higher than the sublimation temperature, a transfer adhesive layer with a thermoplastic resin having a softening point lower than the sublimation temperature and a melt flow rate of 100 g/10 min or lower, and a release sheet, which prevents the transfer adhesive layer from seeping and soaking into the label cloth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transfer adhesive layer is applied to the rear surface of label cloth for marking, then the label can be bonded to clothes through hot pressing, but the transfer adhesive layer melts and seeps into the label cloth surface during sublimation transfer, causing poor durability and peeling
Solution Approach 1:
The patent introduces a heat-resistant layer as an intermediary between the label cloth and the transfer adhesive layer. This intermediate layer has heat-resistant properties that prevent the transfer adhesive from melting and seeping into the label cloth during sublimation transfer, while still allowing the adhesive to function properly at lower temperatures during the bonding process.
Solution Approach 2:
The patent segments the adhesive system into distinct functional layers: a heat-resistant layer that remains stable at high temperatures during sublimation transfer, and a transfer adhesive layer that activates at lower temperatures during bonding. This segmentation allows each layer to perform its specific function without interfering with the other.
2Manufacturing precision
If sublimation transfer is performed at high temperature to transfer colors and patterns, then the transfer quality is improved, but the transfer adhesive layer melts and seeps into the label cloth
Solution Approach 1:
The heat-resistant layer serves as a thermal barrier that protects the transfer adhesive from the high temperatures required for sublimation transfer. This allows the sublimation process to occur at high temperatures for quality transfer while the adhesive remains protected from melting.
Solution Approach 2:
The patent changes the thermal parameters of the system by introducing a layer with different heat resistance properties. This creates a temperature gradient where the sublimation can occur at high temperature on one side while the adhesive remains at a lower temperature on the other side, preventing melting.
3Device complexity
If the label cloth is directly bonded without a heat-resistant layer, then the structure is simple, but the label peels and damages during washing and abrasion
Solution Approach 1:
The heat-resistant layer acts as a protective intermediary that shields the label cloth and transfer adhesive from the mechanical stress of washing and abrasion. This intermediate layer improves washing durability while adding minimal complexity to the overall structure.
Solution Approach 2:
The heat-resistant layer provides beforehand protection against the harmful effects of washing and abrasion. By placing this protective layer in advance during manufacturing, the label is pre-cushioned against future mechanical damage, improving durability without requiring complex post-processing.
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
This structure effectively prevents the transfer adhesive layer from seeping and soaking into the label cloth during sublimation transfer, enhancing the durability and adhesion of the labels, reducing the risk of peeling and damage during washing and abrasion.
Implementation Method 1
various colors, patterns, designs and/or the like are printed on a sheet of transfer paper with a so-called sublimation dye... the colors, patterns, designs and/or the like of the transfer paper are transferred to a surface of the cloth material
Implementation Method 2
the transfer adhesive layer 2 of the label 5 is melted between the cloth of the uniform or the like and the cloth of the label 5, whereby the cloth of the label 5... and the corresponding cloth of the uniform or the like are bonded to each other through the application of heat
Data Source
AI summary
The invention provides a cloth material for marking including, in this order, a label cloth formed from a fiber, an intermediate layer including a resin having a softening point of 180° C. or higher, a transfer adhesive layer including a thermoplastic resin having a softening point of 170° C. or lower and having a melt flow rate of 100 g/10 min or lower; and a release sheet.