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Vertical winding type continuous chemical silver-plating method and device for flexible fabric

A technology of chemical silver plating and flexible fabrics, applied in the field of chemical plating, can solve the problems of low production efficiency, inconvenient stretching, and affecting the appearance, and achieve the effects of excellent washability, bright and dense silver layer, no partial plating and color difference

Active Publication Date: 2014-08-06
BEICHUAN TIANXUN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the present invention, the chemical plating solution is continuously replenished and recycled for many times, and the flexible fabric products with a large area are subjected to vertical and winding chemical silver plating, which avoids the traditional chemical plating solution that is easy to decompose and is difficult to process due to the large amount of waste liquid after one use. The low production efficiency and environmental problems caused by processing and serious pollution have solved the disadvantages of inconvenient stretching and partial color difference that affect the appearance of fabrics with large specific surface area.

Method used

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  • Vertical winding type continuous chemical silver-plating method and device for flexible fabric
  • Vertical winding type continuous chemical silver-plating method and device for flexible fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Base material: polyester mesh, weight 26.5 / m 2 , thickness 0.12mm, width 1.6m, roll length 150m.

[0042] Treatment process: sensitization-cleaning 2 times, each 3min; pre-plating-cleaning 1, 3min; ultrasonic-assisted chemical silver plating 30min-cleaning 2 times, each 5min; drying-inspection.

[0043] In the above process:

[0044] Sensitization treatment solution 300L: hydrochloric acid 10ml / L, stannous chloride 10g / L, room temperature, treatment time 30min.

[0045] Pre-plating solution 300L: silver nitrate 0.12g / L, ammonia water 0.20ml / L, room temperature, treatment time 5min.

[0046] Silver plating solution 500L: silver nitrate 2.86g / L, sodium hydroxide 0.025g / L, ammonia water 2.75ml / L, sodium EDTA2 0.42g / L, reducing agent formaldehyde 3.27ml / L, temperature 50℃, treatment time 60min; ultrasonic Frequency 28kHZ.

[0047] Drying: hot air circulation air drying, drying temperature 100 ℃, drying time 30min.

[0048]After the winding support device is placed in t...

Embodiment 2

[0051] Base material: polyester mesh, weight 30.5 / m 2 , thickness 0.12mm, width 1.5m, roll length 200m.

[0052] Treatment process: sensitization-cleaning 2 times, each 3min; pre-plating-cleaning 1, 3min; ultrasonic-assisted chemical silver plating 30min-cleaning 2 times, each 5min; drying-inspection.

[0053] In the above process:

[0054] For sensitization, 280L of sensitization treatment solution is used for 90 minutes at room temperature, and the concentration of each component is: hydrochloric acid 50ml / L, stannous chloride 30g / L; during the treatment process, a quantitative supplementary pump is used to continuously add sensitization solution and replenishment solution 20L, the concentration of each component is: hydrochloric acid 90ml / L, stannous chloride 60g / L, and the balance is pure water;

[0055] Pre-plating is treated with 300L pre-plating bath at room temperature for 30 minutes, the concentration of each component is: silver nitrate 1g / L, ammonia water 2ml / L, a...

Embodiment 3

[0061] Base material: polyester mesh, weight 20 / m 2 , thickness 0.12mm, width 1.6m, roll length 20m.

[0062] Treatment process: sensitization-cleaning 2 times, each 3min; pre-plating-cleaning 1, 3min; ultrasonic-assisted chemical silver plating 30min-cleaning 2 times, each 5min; drying-inspection.

[0063] In the above process:

[0064] For sensitization, use 290L of sensitization treatment solution at room temperature for 10 minutes, and the concentration of each component is: hydrochloric acid 10ml / L, stannous chloride 10g / L; during the treatment process, use a quantitative supplementary pump to continuously add sensitization solution and replenishment solution 20L, the concentration of each component is: hydrochloric acid 30ml / L, stannous chloride 30g / L, and the balance is pure water;

[0065] Pre-plating is treated with 280L pre-plating solution at room temperature for 5 minutes, and the concentration of each component is: silver nitrate 0.1g / L, ammonia water 0.2ml / L; d...

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Abstract

The invention provides a vertical winding type continuous chemical silver-plating method and device for a flexible fabric. The method comprises the following steps: sensitizing, cleaning, pre-plating, cleaning, performing ultrasonic-assisted chemical silver-plating, cleaning, and drying, wherein treatment liquid is replenished continuously or in one time before next workpiece enters a tank in the sensitizing and pre-plating steps and can be recycled for multiple times, so that the problems of simplicity for decomposition as well as low production efficiency and environmental pollution caused by a large amount of waste liquid, difficulty for treatment, serious pollution and the like after one-time use of conventional chemical plating liquid are solved; a winding supporting device in the method can be used for performing vertical winding type chemical silver-plating on the flexible fabric with large area, so that the shortcomings of inconvenience for extension, simplicity for local color difference and influence on appearance in a treatment process of an existing fabric with large specific surface area are overcome. According to the method, the continuous and uniform coating of a sliver layer is achieved, the production efficiency is high, less waste liquid is generated, and the waste liquid is easily recycled.

Description

Technical field: [0001] The invention belongs to the field of chemical plating, in particular to a method and device for vertical winding continuous chemical silver plating of flexible fabrics. Background technique: [0002] Flexible silver-plated fabric has good electrical conductivity, strong electromagnetic shielding ability, antibacterial and odor suppression effects, and is soft and comfortable to wear. It can be used in high-end electronic products, clothing, home textiles, medical and other industries, and is gradually used and recognized by consumers. At present, there are products produced by electroplating and vacuum plating technology. Although the appearance is uniform and glossy, the silver layer coating is mostly concentrated on the surface layer, and there are often missing plating at the nodes of the braid, and the three-dimensional conduction effect is poor; at the same time, the adhesion is especially durable. The degree of washing is poor. After several ti...

Claims

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Application Information

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IPC IPC(8): D06M11/83C23C18/44D06B1/08D06B23/04D06B15/00
Inventor 朱焰焰张茂功王文华陈士冰
Owner BEICHUAN TIANXUN NEW MATERIALS
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