CN104416847A - Manufacturing method of polyacrylate resin lens - Google Patents

Abstract

The invention provides a manufacturing method of a polyacrylate resin lens. The manufacturing method comprises the following steps: a) mixing raw materials including 900g of KA55-10A, 100g of KA55-10LA, 1.5g of UV-31, 1.0g of UV-41, 1.3g of B blue, 1.0g of R red and 0.5g of V-65 at the normal temperature to prepare a raw material mixture one day before curing reaction; b) heating the raw material mixture to 40 DEGC and then quickly cooling to 25 DEG C; and c) injecting the liquid-state raw material mixture to a lens mould to perform primary curing. By lowering the amount of V-65 and batching at the normal temperature and quickly cooling, the manufacturing method disclosed by the invention can be used for enabling the prepared raw material mixture not to polymerize and cure, so that the success rate of injection molding is increased, so that the yield of products is increased.

Description

The manufacture method of polyacrylic based resin eyeglass

Technical field

The invention belongs to optical field, relate in particular to a kind of manufacture method of polyacrylic based resin eyeglass.

Background technology

When adopting acrylic monomer to produce eyeglass as raw material, the eyeglass produced all presents its distinctive individual character in raw material, technique, quality, and technical performance aspect possesses high-performance, highly reliable feature, is the product of new and high technology.But this product processes requires harsh, current most of company uses these raw material to produce similar products equally, and yield rate is relative to conventional products 5%-10% on the low side.Subject matter is that eyeglass is in one-step solidification process, is separated between glass mold with eyeglass in advance, causes the type change of eyeglass face, has a strong impact on the optical property of eyeglass.

Summary of the invention

For overcoming the above problems, the invention provides a kind of manufacture method of polyacrylic based resin eyeglass, method of the present invention improves technique, improves yields.The scheme that the present invention adopts is as follows:

A kind of manufacture method of polyacrylic based resin eyeglass, it is characterized in that, comprise the following steps: a) at normal temperatures raw material is mixed by the proportioning of KA55-10A 900 grams, KA55-10LA 100 grams, UV-31 1.5 grams, blue 1.3 grams of UV-41 1.0 grams, B, red 1.0 grams of R, V-65 0.5 gram the previous day at curing reaction, make raw mixture; B), after raw mixture being heated to 40 DEG C, 25 DEG C are cooled to rapidly; C) liquid starting material mixture is expelled in lens mold, carries out one-step solidification.The amount of polymerization initiator V-65 is down to 0.5g/kg by the 1.0g/kg commonly used by the present invention, thus prepare burden at normal temperatures, 40 DEG C are heated to after batching, be cooled to rapidly 25 DEG C subsequently, thus prevent polymerizing curable, remain liquid, fill the success rate of mould when improving injection moulding, improve the yields of product.

As further improvement, in step b), after being heated to 40 DEG C, being maintained to reach after 60 mpa.s until raw mixture viscosity and lowering the temperature again.

Rapid cooling in step b), refer to short cooling more consuming time than the duration of normal physical cooling, but preferably, temperature fall time is no more than 30 minutes.

One-step solidification in step c) can adopt conventional solidified technique, but preferably adopts following circulation:

Temperature DEG C	35	40	55	60	70	115	115	60	Running time h
										Time h	1	2	9	1.5	1.5	3	2	1	21

Improve as another, lens mold uses cushion rubber to be fixed.Be different from conventional adhesive tape to fix, cushion rubber can be cycled to repeat utilization, thus reduces production cost.And the use of cushion rubber, makes the possibility of eccentricity of glasses lens reduce, improve product yields further.Can improve for the luminosity eyeglass between 0.00D-2.00D and solve the quality problems of eccentricity of glasses lens, eyeglass reduces the loss of glass mold in release process, and what decrease that eyeglass causes in release process equally is bad.

Beneficial effect: the manufacture method adopting polyacrylic based resin eyeglass of the present invention, raw mixture keeps proper viscosity before the reaction, and mold filling success rate improves, and therefore product is even, and optical property is excellent, and yields improves.The use of cushion rubber improves yields further, and can reuse, and reduces production cost.

Detailed description of the invention

The present invention is described in detail below.

Embodiment 1: the preparation of raw mixture

Curing reaction the previous day by weight, KA55-10A 900 parts, KA55-10LA 100 parts, UV-31 1.5 parts, blue 1.3 parts of UV-41 1.0 parts, B, red 1.0 parts of R, V-65 0.5 part are mixed at normal temperatures, make raw mixture, above-mentioned raw materials all can Ao Xi optical material Science and Technology Ltd. product from Jiangsu, and KA55-10A, KA55-10LA, UV-31, UV-41, B are blue, R is red and V-65 is the said firm's product designation.

Raw material upon mixing, under agitation heats in agitated kettle, arrives after to 40 DEG C, tested viscosity until temperature.Reach after 60 mpa.s until viscosity, under agitation utilize cold bath to be cooled to rapidly 25 DEG C, save backup.

Embodiment 2: the preparation of lens mold

Eyeglass upper die and lower die and partition are fitted together, outside puts cushion rubber, notes the material hole of cushion rubber to align so that filler with the breach of partition.

Embodiment 3: solidification

After liquid starting material mixture is injected ready mould, circulation as shown in the table is adopted to carry out heat cure

Temperature DEG C	35	40	55	60	70	115	115	60	Running time h
										Time h	1	2	9	1.5	1.5	3	2	1	21

Solidification terminates, and is down to after room temperature until mould, and remove cushion rubber, peel of mould obtains eyeglass.Adopt method of the present invention, eyeglass yields reaches 85-90%, than other company height 8%-10% of the same trade.Wait until after cushion rubber and mold clean and reuse next time, compared with the adhesive tape method of routine, production cost reduces greatly.

Should be appreciated that, above embodiment is only as to exemplary illustration of the present invention, and should not be considered as the restriction to protection scope of the present invention, and protection scope of the present invention only limits by claims.

Claims (5)

1. the manufacture method of a polyacrylic based resin eyeglass, it is characterized in that, comprise the following steps: a) at normal temperatures raw material is mixed by the proportioning of KA55-10A 900 grams, KA55-10LA 100 grams, UV-31 1.5 grams, blue 1.3 grams of UV-41 1.0 grams, B, red 1.0 grams of R, V-65 0.5 gram the previous day at curing reaction, make raw mixture; B), after raw mixture being heated to 40 DEG C, 25 DEG C are cooled to rapidly; C) raw mixture is expelled in lens mold, carries out one-step solidification.

2. the manufacture method of polyacrylic based resin eyeglass as claimed in claim 1, is characterized in that, in step b), after being heated to 40 DEG C, being maintained to reach after 60 mpa.s until raw mixture viscosity and lowering the temperature.

3. the manufacture method of polyacrylic based resin eyeglass as claimed in claim 2, it is characterized in that, temperature fall time is no more than 30 minutes.

4. as the manufacture method of polyacrylic based resin eyeglass in any one of the preceding claims wherein, it is characterized in that, the one-step solidification in step c) adopts following circulation:

Temperature DEG C 35 40 55 60 70 115 115 60 Running time h Time h 1 2 9 1.5 1.5 3 2 1 21

。

5. the manufacture method of polyacrylic based resin eyeglass as claimed in claim 4, is characterized in that, lens mold uses cushion rubber to be fixed.