Method for making high-reflectance microprism reflecting film working mould with ultrasound-pulse electroforming

A technology of pulse electroforming and light reflection, which is applied in the field of microprisms, can solve problems such as difficult control of the light reflection of the working mode of the reflective film, and achieve the effect of convenient forward and reverse pulse parameters and convenient adjustment

Active Publication Date: 2013-12-04
福建跃发光新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a high-reflective microprism reflective film working mold by using ultrasonic-pulse electroforming to solve the problems that the existing microprisms are difficult to control the reflective degree of its reflective film working mold.

Method used

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  • Method for making high-reflectance microprism reflecting film working mould with ultrasound-pulse electroforming
  • Method for making high-reflectance microprism reflecting film working mould with ultrasound-pulse electroforming

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Electroforming solution preparation: according to the total volume of the electroforming tank, weigh 450g of nickel sulfate, 50g of nickel chloride, 50g of boric acid, 0.07g of sodium lauryl sulfate, 0.5g of saccharin and 0.35g of 1,4-butynediol. g. Add deionized water to the electroforming tank, heat to 50°C, add weighed nickel sulfate and nickel chloride in turn, stir and keep warm for 4 hours. Take another beaker and rinse it with deionized water, dry it, add deionized water, stir and heat to boiling, add weighed boric acid and boil for half an hour, then add sodium lauryl sulfate, wait until sodium lauryl sulfate is fully dissolved Finally, slowly pour it into the electroforming tank, and add saccharin and butynediol to the casting tank, then add deionized water until the electroforming tank is full, stir well, keep warm at 45°C for 12 hours, and measure with pH test paper Its pH value is adjusted to pH=4.2 with 30% sulfuric acid solution. Guaranteed quality-volum...

Embodiment 2

[0029] Nickel sulfate electroforming solution preparation: according to the total volume of the electroforming tank, first weigh 300g of nickel sulfate, 30g of nickel chloride, 30g of boric acid, 0.05g of sodium lauryl sulfate, 0.1g of saccharin and 1,4-butynedi Alcohol 0.2g. Add deionized water to the electroforming tank, heat to 55°C, add weighed nickel sulfate and nickel chloride in turn, stir and keep warm for 3.5h. Take another beaker and rinse it with deionized water, dry it, add deionized water, stir and heat to boiling, add weighed boric acid and boil for 40 minutes, then add sodium lauryl sulfate, wait until sodium lauryl sulfate is fully dissolved Finally, slowly pour it into the electroforming tank, and add saccharin and butynediol into the casting tank, then add deionized water until the electroforming tank is full, stir well, keep warm at 50°C for 10 hours, and measure with pH test paper Its pH value is adjusted to pH=4.2 with 30% sulfuric acid solution. Guarant...

Embodiment 3

[0035]Nickel sulfate electroforming solution preparation: according to the total volume of the electroforming tank, first weigh 600g of nickel sulfate, 70g of nickel chloride, 75g of boric acid, 1g of sodium lauryl sulfate, 1g of saccharin and 0.5 g of 1,4-butynediol g. Add 1 / 2 volume of deionized water to the electroforming tank, heat to 60°C, add weighed nickel sulfate and nickel chloride in turn, stir and keep warm for 3 hours. Take another beaker and rinse it with deionized water, dry it, add deionized water, stir and heat to boiling, add weighed boric acid and boil for 50 minutes, then add sodium lauryl sulfate, wait until sodium lauryl sulfate is fully dissolved Finally, slowly pour it into the electroforming tank, and add saccharin and butynediol into the casting tank, then add deionized water until the electroforming tank is full, stir well, keep it warm at 55°C for 8 hours, and measure it with pH test paper Its pH value is adjusted to pH=4.2 with 30% sulfuric acid so...

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Abstract

The invention relates to a microprism, in particular to a method for making a high-reflectance microprism reflecting film working mould with ultrasound-pulse electroforming. Electroforming liquid is prepared, namely hot water is added into an electroforming groove, then nickel sulfate hexahydrate and nickel chloride are added in sequence, hot water is added into a container, then boric acid is added, boiling is carried out, then lauryl sodium sulfate is added, after dissolution, liquid is poured into the electroforming groove, saccharin and 2-butyne-1,4-diol are added into the electroforming groove, then water is injected until the electroforming groove is full, pH is adjusted to 4.2; an anode nickel plate is placed into an anode basket and is connected to a positive electrode, a nickel master mould is connected to a negative electrode, ultrasound power is adjusted to 210-300W, frequency is adjusted to 30-50kHz, pulse current density is adjusted to 1-6A/dm<2>, current frequency is adjusted to 1000Hz, working time ratio of forward currents and backward currents is adjusted to 5:1, duty ratio is adjusted to 10%-30%, electroforming is carried out, and the high-reflectance microprism reflecting film working mould is obtained after cathode demoulding.

Description

technical field [0001] The invention relates to a microprism, in particular to a method for preparing a high-reflection microprism reflective film working mold by using ultrasonic-pulse electroforming. Background technique [0002] Under the conditions of general mechanical stirring and DC electroforming process, electroformed nickel can only get a rough surface, and its retroreflective performance is not high. The micro-prism reflective film is made of dozens of micron-scale pyramid arrays, which cannot be mechanically polished after processing. The reflective film requires the working mold to have a high coefficient of retroreflection, that is, high reflectivity must be obtained after electroforming. [0003] Nickel is a common electroforming and electroplating material. It is widely used due to its good performance. Most of the research is on the formulation of plating solution, electroplating equipment, DC electroforming and coating appearance. There are few researches ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/00C25D1/06C25D3/12C25D5/18C25D5/20
Inventor 杨光皮钧
Owner 福建跃发光新材料股份有限公司
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