Glove Liner with Soluble Particle Grip and Composite Elasticity
Solution Overview
Problem
Existing rubber gloves have poor elasticity and reduced slip resistance in oily environments, with post-treatment methods being labor-intensive and costly, failing to enhance elasticity effectively.
Innovation Solution
A method involving bundling thin nylon yarn with moderate spandex, using a coagulant mixture of calcium chloride and methanol, and applying a latex mixture of vulcanized nitrile-butadiene rubber and water-soluble polyurethane, followed by multiple dipping and baking steps with soluble solid particles to create a glove with enhanced gripping power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If post treatment is performed on latex surface to form beads, then slip resistance is improved, but labor consumption and cost increase
Solution Approach 1:
The patent applies preliminary action by incorporating the coagulant solution and soluble solid particles into the latex mixture before the dipping process. This pre-mixing eliminates the need for post-treatment bead formation, as the particles are already integrated into the latex coating that will be applied to the glove surface in the initial dipping step.
Solution Approach 2:
The patent merges multiple functions into a single latex coating process. The latex mixture simultaneously provides the base coating, the coagulant effect for particle formation, and the soluble solid particles for grip enhancement. This consolidation eliminates separate post-treatment steps, reducing labor consumption while maintaining slip resistance improvement.
2Reliability
If post treatment is performed on latex surface to form beads, then slip resistance is improved, but manufacturing cost increases
Solution Approach 1:
The coagulant solution and soluble solid particles are mixed into the latex before application, performing the grip-enhancing action in advance during the primary dipping process rather than requiring costly post-treatment operations.
Solution Approach 2:
The latex mixture serves multiple functions: it acts as the base coating material, the coagulant for particle formation, and the carrier for soluble solid particles. This multi-functionality consolidates multiple manufacturing steps into one, reducing overall manufacturing cost while achieving the desired slip resistance.
3Reliability
If traditional rubber glove material is used, then basic protection is provided, but elasticity is poor
Solution Approach 1:
The patent uses a composite latex mixture combining nitrile-butadiene rubber (providing protection and oil resistance) with water-soluble polyurethane latex (providing elasticity and flexibility). This composite material system achieves both basic protection and improved elasticity simultaneously, resolving the contradiction between protective function and operational comfort.
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 resulting gloves exhibit improved elasticity, effective grease management, and significantly enhanced slip-proof performance, with the anti-slipping force being over two times greater than standard gloves.
Implementation Method 1
a hand former covered with the glove liner is dipped into a coagulant completely. The coagulant is a mixed solution of calcium chloride and methanol with a concentration of 1.8%.
Implementation Method 2
the hand former covered with the glove liner that has been dipped with the latex is put into a hot blast heater, and hot blast of 60° C. to 70° C. is blown to the surface of the glove liner for 120 s
Implementation Method 3
the hand former covered with the glove liner is put into an oven of 75° C. to 80° C. for pre-heating for 15 minutes
Implementation Method 4
The latex is a mixture of vulcanized nitrile-butadiene rubber and water-soluble polyurethane latex
Implementation Method 5
the hand former covered with the glove liner, the surface thereof being sprayed with the soluble solid particles, is dipped into water to dissolve the soluble solid particles, that is, the hand former is dipped for three times, each lasting for 15 min
Implementation Method 6
a thin nylon yarn and a moderate spandex are bundled together, the bundle is fed in two yarns on a knitting machine, and a glove liner is made
Data Source
AI summary
A method for making gloves with enhanced gripping power, comprises: step 1, making a glove liner; step 2, covering a hand former with the glove liner and putting it into an oven for pre-heating; step 3, dipping the hand former into a coagulant completely; step 4, dipping the hand former into a latex; step 5, drying the surface; step 6, dipping the hand former into the latex again; step 7, spraying soluble solid particles on the surface evenly; step 8, baking; step 9, dipping the hand former into water to dissolve the soluble solid particles; step 10, baking; getting a glove with enhanced gripping power. The glove made by the method has good flexibility, can prevent oil permeability and has good slip-proof effect.