Adhesive Tape Separation Layer with Long-Chain Alkyl Group
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Solution Overview
Problem
Existing adhesive tapes struggle to maintain antifouling properties and separability when used as rolls, with dirt and debris often sticking to the front surface and the adhesive layer adhering too strongly to the separation layer during feed-out, making it difficult to peel efficiently.
Innovation Solution
The adhesive tape is designed with a layered structure comprising a separation layer, a tape base layer, and an adhesive layer, where the separation layer includes an olefin resin or acrylic resin separating agent with a long-chain alkyl group, and the adhesive layer has a higher solubility parameter value, allowing for improved separability and reduced adhesion between layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separation layer is provided on the adhesive tape to prevent dirt and debris from sticking to the front surface, then antifouling properties are improved, but the adhesive layer adheres too strongly to the separation layer, making it difficult to peel during feed-out from the roll
Solution Approach 1:
The patent applies parameter changes by carefully controlling the solubility parameter of the adhesive layer to be higher than that of the separation layer. This parameter difference creates optimal adhesion strength - sufficient to hold the tape in the roll but weak enough to allow easy peeling during feed-out. The specific solubility parameter range (adhesive layer > separation layer) resolves the contradiction between maintaining strong bond and enabling easy separation.
Solution Approach 2:
The patent uses composite materials by combining a separation layer (olefin resin or acrylic resin with long-chain alkyl group) with an adhesive layer having specific solubility characteristics. This composite structure provides both the antifouling properties of the separation layer and the controlled adhesion properties of the adhesive layer, enabling simultaneous achievement of dirt resistance and easy peelability.
2Stability of the object's composition
If the adhesive layer has strong adhesion to the separation layer to maintain roll stability, then the roll structure is stable, but the load required to peel the adhesive layer from the separation layer increases, making feed-out difficult
Solution Approach 1:
The patent resolves this contradiction by changing the solubility parameter of the adhesive layer to be higher than that of the separation layer. This parameter optimization creates a balanced adhesion strength that maintains roll stability during storage and transport while requiring minimal peel load during feed-out operations.
3Object-affected harmful factors
If a separation layer is provided on the adhesive tape, then the layered structure provides antifouling protection, but the complexity of the adhesive tape structure increases
Solution Approach 1:
The patent uses composite materials to create a multi-layer structure consisting of a separation layer and an adhesive layer with specific solubility characteristics. This composite approach provides antifouling protection while maintaining relatively simple manufacturing processes and material selection, balancing functionality with structural complexity.
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 configuration enhances the adhesive tape's ability to maintain antifouling properties and improves separability by allowing the adhesive layer to peel more easily from the separation layer, reducing the load required for separation and preventing dirt and debris from sticking, thus optimizing the tape's performance when used as a label or sealing material.
Implementation Method 1
a separation layer provided on the other side of the tape base layer in the thickness direction and including an olefin resin separating agent or an acrylic resin separating agent having a long-chain alkyl group of 8 to 30 carbons
Implementation Method 2
a separation layer provided on the other side of the tape base layer in the thickness direction and including an olefin resin separating agent or an acrylic resin separating agent having a long-chain alkyl group of 8 to 30 carbons
Implementation Method 3
the adhesive layer has a higher solubility parameter value, allowing for improved separability and reduced adhesion between layers
Data Source
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AI summary
The disclosure discloses an adhesive tape (150) having a dimension in a thickness direction, comprising a tape base layer (153), an adhesive layer (152) disposed on one side of said tape base layer (153) in thickness direction and including a predetermined adhesive, a separation material (151) that separably adheres to said adhesive layer (152), provided on the one side of said adhesive layer (152) in thickness direction, and a separation layer (154) provided on the other side of said tape base layer (153) in said thickness direction and including an olefin resin separating agent or an acrylic resin separating agent having a long-chain alkyl group.