Embossed PVC Tape Anti-Sticking Texture
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Solution Overview
Problem
Conventional PVC tapes face issues with surface stickiness during continuous printing processes, affecting printing quality and manufacturing speed. The addition of lubricants compromises transparency, while uneven talcum powder dispersion further impacts printing quality.
Innovation Solution
An embossed PVC tape with a specific textured surface is developed, featuring a first surface with embossed repeating patterns that include a bottom portion and a tapered side portion. This texture provides an anti-sticking property without the need for lubricants or talcum powders, maintaining high transparency and printing quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lubricant is added to prevent sticking, then anti-sticking property is improved, but transparency deteriorates
Solution Approach 1:
The patent removes lubricants from the system entirely and replaces them with an embossed texture structure on the PVC tape surface. This extraction of the harmful substance (lubricant) while maintaining the desired function (anti-sticking) resolves the contradiction by achieving anti-sticking through physical surface modification rather than chemical additives that compromise transparency.
Solution Approach 2:
The patent replaces the chemical mechanism of lubricant-based anti-sticking with a mechanical/physical mechanism through embossed surface texture. The raised and recessed areas create friction control through geometric structure rather than chemical lubrication, thereby maintaining transparency while preventing sticking.
2Ease of operation
If talcum powders are sprinkled to reduce stickiness, then anti-sticking property is improved, but printing quality deteriorates due to uneven dispersion
Solution Approach 1:
The patent eliminates talcum powders from the system and achieves anti-sticking through an embossed texture integrated into the PVC tape itself. This removes the source of uneven dispersion problems while maintaining the anti-sticking function through a controlled surface geometry that does not interfere with printing quality.
Solution Approach 2:
The embossed texture provides localized surface modification with raised and recessed areas that create controlled friction characteristics. This local quality change at the surface level achieves anti-sticking property without affecting the bulk material properties or printing quality, unlike unevenly dispersed powders.
3Ease of operation
If opposite surfaces are made too sticky to prevent sliding, then friction is improved, but stress increases during printing
Solution Approach 1:
The patent optimizes the geometric parameters of the embossed texture (height, width, spacing of raised and recessed areas) to achieve the desired friction characteristics. By carefully controlling these parameters, the surface provides sufficient friction to prevent sliding while minimizing stress accumulation during printing operations.
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
The embossed PVC tape achieves a comfortable anti-sticking property, ensuring that opposite surfaces do not easily stick or slide excessively, thereby maintaining high transparency and printing quality, and allowing for efficient continuous printing processes.
Implementation Method 1
a maximum static friction coefficient between the first surface and the second surface is within a range from 0.72 to 0.78
Data Source
AI summary
An embossed PVC tape has a first surface and a second surface that are opposite to each other. The embossed PVC tape has an embossed texture formed on the first surface. The embossed texture includes a plurality of repeating patterns, and each of the repeating patterns includes a bottom portion arranged on the first surface and a side portion recessed in the first surface. The side portion has a tapered shape, and an end of the side portion away from the first surface is defined as an end point. On the first surface, a quantity of the end point formed per 3,000 square microns is one or more. A maximum static friction coefficient between the first surface and the second surface is within a range from 0.72 to 0.78.