Hot Melt Adhesive Film for Fine-Line Heat-Pressed Graphics
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Solution Overview
Problem
Existing methods for forming graphics on surfaces using self-adhesive flannel and films are difficult due to the fiber and granular nature of the materials, leading to issues with cutting fine lines, warping, and inaccurate spacing and positioning of graphic parts.
Innovation Solution
A method involving a hot melt adhesive film with a positioning layer and glue layer, allowing for precise cutting and heat pressing to form fine graphics with transfer materials like powdery, micro-granular, fibrous, or bronzing elements, ensuring smooth, flat adhesion on objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If self-adhesive flannel with fiber fluff is used to create graphics, then the graphic surface has tactile texture, but the fiber material is difficult to cut and cannot form fine-line graphics
Solution Approach 1:
The invention separates the cutting process from the texture application process. The graphic outline is first cut from a flat adhesive film, then texture materials (fluff, glitter, etc.) are applied only to the cut graphic areas. This segmentation allows fine-line cutting of non-textured material while preserving tactile texture in the final graphic.
Solution Approach 2:
The adhesive film serves as an intermediary carrier that enables precise cutting before texture application. The cut adhesive graphic acts as a template or mask that guides where texture materials should be applied, allowing fine detail transfer without requiring the texture material itself to be cut.
2Ease of operation
If self-adhesive flannel graphics are cut out, then the graphic can be removed from the sheet, but the cut-out graphics easily warp and are difficult to stick smoothly and evenly
Solution Approach 1:
The adhesive is pre-applied to the backing sheet in the exact shape and position where the graphic will be placed. This preliminary adhesive placement ensures that when the graphic is applied, it adheres immediately and uniformly across the entire surface, preventing warping and ensuring smooth attachment.
Solution Approach 2:
The invention creates a negative template by cutting the graphic shape from the adhesive film itself. The remaining adhesive area forms a precise copy of the desired graphic shape, which is then transferred to the target surface. This copying method ensures accurate shape reproduction and uniform adhesion.
3Manufacturing precision
If cut-out graphics with separated parts are glued to clothes, then the graphic can be assembled, but it is difficult to accurately control the spacing and positions between parts
Solution Approach 1:
Multiple separated graphic parts are pre-positioned and adhered to a single backing sheet with their spacing and positioning already established. This merging of multiple components into one integrated assembly eliminates the need for separate positioning operations and ensures accurate spacing between parts.
Solution Approach 2:
The relative positions and spacing of multiple graphic parts are predetermined and fixed on the backing sheet before application. This preliminary arrangement of multiple components ensures that when the entire assembly is transferred to the target surface, all parts maintain their correct spacing and positioning without requiring complex alignment procedures.
4Illumination intensity
If light reflective film with micro glass beads is used, then the graphic has light reflective function, but the granular beads make it difficult to cut fine-line graphics
Solution Approach 1:
The cutting and texture application processes are separated. The graphic outline is cut from the adhesive film without the reflective beads, ensuring fine-line precision. The light-reflective beads are then applied as a texture material only to the cut graphic areas, preserving both fine detail and reflective function.
Solution Approach 2:
The adhesive film serves as an intermediary that enables precise cutting before reflective texture application. The cut adhesive graphic acts as a template that defines where reflective beads should be placed, allowing fine-line precision while achieving light reflection effects.
5Shape
If bronzing film with bronzing elements is used, then the graphic has metallic aesthetic effect, but the elements make it difficult to cut detailed graphics
Solution Approach 1:
The cutting and texture application processes are separated. The detailed graphic outline is cut from the adhesive film without the bronzing elements, ensuring fine detail precision. The bronzing elements are then applied as a texture material only to the cut graphic areas, preserving both detail and metallic effect.
Solution Approach 2:
The adhesive film serves as an intermediary that enables precise cutting before metallic texture application. The cut adhesive graphic acts as a template that defines where bronzing elements should be placed, allowing detailed graphics while achieving metallic aesthetic effects.
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 the creation of fine, intact, and aesthetically pleasing graphics with accurate spacing and positioning, providing tactile impressions or functional effects such as light reflection and metallic aesthetics.
Implementation Method 1
heat pressing and adhering the hot melt glue layer constituting the graphic on the positioning layer to a surface of an object
Implementation Method 2
a hot melt adhesive film having a positioning layer and a hot melt glue layer adhered to the positioning layer
Data Source
AI summary
The invention relates to a graphic forming method by heat pressing, the forming method comprising: preparing a hot melt adhesive film having a hot melt glue layer; cutting out a graphic from the hot melt glue layer of the hot melt adhesive film, the graphic being positioned on the hot melt adhesive film; heat pressing and adhering the hot melt glue layer constituting the graphic to a surface of an object; heat pressing and adhering a transfer material of a transfer sheet to the hot melt glue layer constituting the graphic; and removing the transfer sheet to form the graphic, a surface of the graphic being adhered with the transfer material. The forming method is capable of producing fine graphics on a surface of an object with a transfer material on the graphic.