CN101172378A - Method for producing silica gel products - Google Patents
Method for producing silica gel products Download PDFInfo
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- CN101172378A CN101172378A CNA2007100296763A CN200710029676A CN101172378A CN 101172378 A CN101172378 A CN 101172378A CN A2007100296763 A CNA2007100296763 A CN A2007100296763A CN 200710029676 A CN200710029676 A CN 200710029676A CN 101172378 A CN101172378 A CN 101172378A
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- silica gel
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Abstract
The invention relates to the production method of a silica gel product. The method comprises the following steps: firstly, an upper die corresponding to the right face shape of the product and a lower die corresponding to the back face shape of the product are respectively manufactured; secondly, the silica gel burden material is manufactured: the silica gel burden material comprises solid silica gel bedding material and liquid silica gel bedding material; thirdly, feed preparation; fourthly, a finished product is manufactured: the liquid silica gel bedding material with different colors is injected in the corresponding location in the die cavity of the upper die, simultaneously, the solid silica gel bedding material, the weight of which is slightly weightier than the weight of the product, is weighted and arranged in the die cavity of the lower die, sulphidizing treatment is performed to the upper die and the lower die which are closed, and then the finished product can be obtained. Because the invention adopts thinning agent which is easy to be volatilized to replace the traditional method, the concentration of the liquid silica gel bedding material prepared is low, the viscosity is low, the fluidity is good, the self has a defoaming function, various colors can be coated once, vacuum defoaming treatment is not required to be performed after being coated once, the operation is very convenient, and the efficiency is high. The invention can be used for manufacturing a brand mark, a key, a drop brand or various handicraft articles.
Description
Technical field:
The present invention is a kind of production method of silica gel products, belongs to the renovation technique of the production method of silica gel products.
Background technology:
At present, many industries such as existing clothes, footwear, case and bag, handicraft, the trade mark of the three-dimensional polychrome that demand is a large amount of, key drop, photo frame and glue based article, accessory etc.At present domestic and international market consumption maximum, be polyvinyl chloride (English name is called for short PVC) paste resin goods the most widely, because the assistant agent that PVC paste resin goods add in manufacture process, pigment etc. are difficult to reach the demand of real environmental protection, be difficult to by U.S. food (FDA) authentication and the up-to-date environmental protection standard of issuing in 2006.Many enterprises bring into use silica gel products to replace the PVC paste resin goods to satisfy the environmental protection demand, but the manufacturing process of conventional production methods is: the syringe that takes out the good liquid silica gel of can in the refrigerator, end at syringe is loaded onto pressure cover, connects with pressure cover and micro-point gum machine respectively with two ports of tracheae.Use the floor push of micro-point gum machine configuration, liquid silica gel lining is filled out counterpart at the die cavity pattern with a trace glue colouring mode.Overfill is not answered in colouring, in order to avoid cause colour mixture.But because the material concentration height that makes of conventional formulation, viscosity is also very high, and difficult de-bubbled so after the color of filling out what a operation, put the deaeration once more of vacuum machine into, and will wait for that color flows to the position, corner of pattern, flows and will repair color when not in place.Through roasting mould platform or baking box temperature, fabric color is dried again, chosen gently except that excessive color part with choosing pin with about 120 ℃, again through freezing stage or the plate that is filled with water, mold cools down to normal temperature, is filled out the subsequent processing color again, finish up to the fabric color colouring so repeatedly.Claim again a weight to be slightly larger than the solid silica gel of product, be positioned in the die cavity that the A that closes, B mould vulcanize with 180 ℃～200 ℃ pressurizations (selecting the different size vulcanizer for use according to the mould size) of heating of silica gel vulcanizer, can obtain finished product.
More than in the operation, because of liquid silica gel lining concentration height, colouring operation inconvenience because of wanting vacuum defoamation after each colouring, causes production efficiency low again.
In addition, allocate curing agent and diluent when traditional operation method liquid silica gel uses into, the diluent Main Ingredients and Appearance that conventional method is used is a silicone oil, and there is following drawback in the diluent of its use:
(1) in the time of in diluent is liquid silica gel 25%, because though this diluent is rarer than liquid silica gel, but itself also be relatively to thick liquid, do not reach desirable dilution effect, the process that colors in is owing to the dense height of raw material at all, and viscosity is big brings a series of problems with the flowability difference, be difficult to flow to the position as the patterned sides angle part, flow slowly, lead silk etc. in the operating process and be awkward problem, cause at the bottom of the production efficiency; In addition, because just there has been difficult de-bubbled in the material concentration height, take off the not phenomenon of clean bubble, so that the product of producing also has many pores.These problems have seriously hindered the raising of production efficiency, and have influenced the quality of product.
(2) when rare dose of deal be the liquid silica gel 25% or more for a long time, because of the Main Ingredients and Appearance of diluent own is a silicone oil, volatility is little, and lubrication is arranged, and certain dilution effect is arranged, viscosity also decreases.But in the process that production is heating and curing, diluent can not vapor away, and after the formed product, therefore the physical property of lining part also has been changed, so that the lining deliquescing becomes fragile, the toughness variation, and the hot strength step-down.So in formed product taking-up process, will occur as lining when being stuck in the little lines of pattern in the die cavity, taking-up can cause lining to tear mashed coming off by force, the diluent that adds the silicone oil composition has lubrication, as add too much, lining part and bed material after the moulding are bonding bad, cause lining to come off.
Because traditional handicraft fails to be well solved in these areas, the product of the multiple color of solid type not can manufacture with production cost too high, is difficult to satisfy the wilderness demand in market.
Summary of the invention:
The objective of the invention is to consider the problems referred to above and provide a kind of simple to operation, efficient height, the production method of the silica gel products that production cost is low.
The production method of silica gel products of the present invention includes following steps:
1) make mould: mould has and the corresponding die cavity of required product shape, and mould includes with the corresponding patrix of goods front shape and reaches and the corresponding counterdie of goods back side shape;
2) make the silica gel batching: the silica gel batching includes solid silica gel bed material and liquid silica gel lining, solid silica gel bed material proportioning vulcanizing agent in the solid silica gel, and the required color of qualified bedding material is mixed evenly through muller again; Liquid silica gel lining is according to the needs furnishing shades of colour of lining, and allocates curing agent and diluent into, stirs through mixer;
3) get the raw materials ready: liquid silica gel lining will be got the raw materials ready before production operation after preparing material, and it comprises the steps:
1. consumption cup liquid silica gel lining is put into and is carried out the vacuum defoamation processing in the vacuum machine;
2. select for use suitable syringe needle to be contained on the syringe bayonet socket according to pattern magnitude in the die cavity, take out the piston in the syringe,, add in the syringe of being furnished with different big small pinheads respectively and cover piston the liquid silica gel lining of different colours.
Syringe, the measuring cup that 3. liquid silica gel lining will be housed placed in the refrigerator refrigeration respectively and handled, with the low temperature curing of slowing down.
4) make finished product: with the syringe of the above-mentioned liquid silica gel lining that different colours is housed respectively lining is injected relevant position in the patrix die cavity, again fabric color is dried; Simultaneously, the solid silica gel bed material that weighing slightly overweights product weight is positioned in the die cavity of counterdie, and close patrix and counterdie carry out vulcanizing treatment, can vulcanize to obtain finished product.
The vulcanizing agent of above-mentioned solid silica gel bed material proportioning 8%～12% when batching.
It is that consumption cup half cup liquid silica gel lining is put into and carried out vacuum defoamation in the vacuum machine and handle that the vacuum defoamation of aforesaid liquid silica gel lining is handled, and takes out after about 3～5 minutes.
The above-mentioned liquid silica gel lining that refrigerates in the refrigerator after the processing that is placed on can use in 6～8 hours time, to avoid its curing.
Aforesaid liquid silica gel lining is dried fabric color with about 60～100 ℃ temperature with roasting mould platform or baking box.
The proportioning of aforesaid liquid silica gel lining is:
Silica gel 900g～1100g pigment 95g～105g curing agent 95g～105g
Silicone oil diluent 500g～2500g
The proportioning of above-mentioned silicon liquid silica gel lining is:
Silica gel 1000g pigment 100g curing agent 100g silicone oil diluent 2000g
Above-mentioned silicone oil diluent is benzinum, toluene or kerosene.
Above-mentioned benzinum is for being 60 ℃～120 ℃ benzinum with the food-grade boiling point.
The present invention is owing to adopt the diluent of volatilization easily to replace the diluent of conventional method, so the liquid silica gel lining concentration that mixes is low, viscosity is little, flowability is very good, itself defoaming function is arranged, can once go up a plurality of colors, not needing to carry out vacuum defoamation after each colouring handles again, operation is very easy, and efficient is very high.In addition, the comparable conventional method of pigment of the present invention is added one times, and covering is good, look thoroughly not can satisfy fully and drip the glue needs that color in, and also can satisfy spraying the needs of painting, the present invention not only production efficiency improves greatly, and the also reduction greatly of every kg of material cost, and guarantees result of use.The present invention is a kind of simple to operation, the production method of the silica gel products that production efficiency is high.The present invention can be used for making the trade mark of one or more colors, key, drop or various handicraft.
The specific embodiment:
Embodiment 1:
The production method of silica gel products of the present invention includes following steps:
1) make mould: mould has and the corresponding die cavity of required product shape, and mould includes with the corresponding patrix of goods front shape and reaches and the corresponding counterdie of goods back side shape; Mould can go out the die cavity of required product shape with computer carving machine or hand engraving machine engraving, and die cavity becomes concavo-convex opposite form with the shape of product up and down.In addition, cavity section can be according to the product demand effect, and polishing draws the goods of brightness effect, and sandblasting draws Shamian Island effect goods.
2) make the silica gel batching: the silica gel batching includes solid silica gel bed material and liquid silica gel lining, solid silica gel bed material proportioning vulcanizing agent in the solid silica gel, and the required color of qualified bedding material is mixed evenly through muller again; Liquid silica gel lining is according to the needs furnishing shades of colour of lining, and allocates curing agent and diluent into, stirs through mixer; Solid silica gel price is relatively inexpensive, be commonly used for the body portion (being called bed material) of the big silica gel product of consumption, and liquid silica gel price is relatively costly, is suitable for color part (being called lining) on the less relatively pattern of consumption.The vulcanizing agent of above-mentioned solid silica gel bed material proportioning 8%～12% when batching.
3) get the raw materials ready: liquid silica gel lining will be got the raw materials ready before production operation after preparing material, and it comprises the steps:
1. consumption cup liquid silica gel lining is put into and is carried out the vacuum defoamation processing in the vacuum machine; It is that consumption cup half cup liquid silica gel lining is put into and carried out vacuum defoamation in the vacuum machine and handle that the vacuum defoamation of aforesaid liquid silica gel lining is handled, and takes out after about 3～5 minutes.
2. select for use suitable syringe needle to be contained on the syringe bayonet socket according to pattern magnitude in the die cavity, take out the piston in the syringe,, add in the syringe of being furnished with different big small pinheads respectively and cover piston the liquid silica gel lining of different colours.
Syringe, the measuring cup that 3. liquid silica gel lining will be housed placed in the refrigerator refrigeration respectively and handled, with the low temperature curing of slowing down.The above-mentioned liquid silica gel lining that refrigerates in the refrigerator after the processing that is placed on can use in 6～8 hours time, to avoid its curing.
4) make finished product: with the syringe of the above-mentioned liquid silica gel lining that different colours is housed respectively lining is injected relevant position in the patrix die cavity, again fabric color is dried; Simultaneously, the solid silica gel bed material that weighing slightly overweights product weight is positioned in the die cavity of counterdie, and close patrix and counterdie carry out vulcanizing treatment, can vulcanize to obtain finished product.Aforesaid liquid silica gel lining is dried fabric color with about 60～100 ℃ temperature with roasting mould platform or baking box.
The proportioning of aforesaid liquid silica gel lining is:
Silica gel 900g～1100g pigment 95g～105g curing agent 95g～105g silicone oil diluent 500g～2500g.
In the present embodiment, the proportioning of above-mentioned silicon liquid silica gel lining is:
Silica gel 1000g pigment 100g curing agent 100g silicone oil diluent 2000g.
Above-mentioned silicone oil diluent is benzinum, toluene or kerosene.Is 60 ℃～120 ℃ benzinum as the high product of environmental requirement with the food-grade boiling point, available toluene that environmental requirement is not high or kerosene etc.
Below be that every kilogram of Costco Wholesale of new prescription and old prescription compares:
In the market price, the liquid silica gel: 150 yuan/kg, pigment: 150 yuan/kg, curing agent: 120 yuan/kg, the silicone oil diluent that conventional method is used: 80 yuan/kg is example with the benzinum in the new method: 15 yuan/kg.
Conventional formulation
| Silica gel | Pigment | Curing agent | The silicone oil dilution | Add up to |
| 1000g | About 50g | 100g | In the 250g | 1400g |
| 150 yuan | 7.5 unit | 10 yuan | 20 yuan | 187.5 unit |
Amount to: 133.9 yuan/kg
Be that 1000g liquid silica gel can be allotted the lining about 1400g.
New formulation:
| Silica gel | Pigment | Curing agent | Benzinum | Add up to |
| 1000g | A 100g left side | 100g | A 2000g left side | 3200g |
| 150 yuan | 15 yuan | 12 yuan | 30 yuan | 222 yuan |
Amount to: 69.4 yuan/kg
We can see in the prescription of introducing in the past, and conventional method is used the low volatility diluent, and promptly 1000g liquid silica gel can be allotted the 1400g lining, and the present invention can allot 3200g left and right sides lining for 1000g liquid silica gel, but does not influence chromatic effect.
Clearly, the present invention has thoroughly solved problems such as liquid silica gel concentration height, difficult de-bubbled and colouring difficulty in production operation.Simplified the complexity of conventional method, improved production efficiency greatly, when producing same product, it is original more than 1/2 that expensive liquid silica gel raw material use amount reduces to, thereby lowered cost of material greatly, thereby reach the purpose of volume production.
Embodiment 2:
The production method of silica gel products of the present invention is identical with embodiment 1, and difference is that the proportioning of liquid silica gel lining is:
Silica gel 900g pigment 95g curing agent 95g silicone oil diluent 500g.
Embodiment 3:
The production method of silica gel products of the present invention is identical with embodiment 1, and difference is that the proportioning of liquid silica gel lining is:
Silica gel 1100g pigment 105g curing agent 105g silicone oil diluent 2500g.
Embodiment 4:
The production method of silica gel products of the present invention is identical with embodiment 1, and difference is that the proportioning of liquid silica gel lining is:
Silica gel 1000g pigment 95g curing agent 105g silicone oil diluent 1800g.
Claims (9)
1. the production method of a silica gel products is characterized in that including following steps:
1) make mould: mould has and the corresponding die cavity of required product shape, and mould includes with the corresponding patrix of goods front shape and reaches and the corresponding counterdie of goods back side shape;
2) make the silica gel batching: the silica gel batching includes solid silica gel bed material and liquid silica gel lining, solid silica gel bed material proportioning vulcanizing agent in the solid silica gel, and the required color of qualified bedding material is mixed evenly through muller again; Liquid silica gel lining is according to the needs furnishing shades of colour of lining, and allocates curing agent and diluent into, stirs through mixer;
3) get the raw materials ready: liquid silica gel lining will be got the raw materials ready before production operation after preparing material, and it comprises the steps:
1. consumption cup liquid silica gel lining is put into and is carried out the vacuum defoamation processing in the vacuum machine;
2. select for use suitable syringe needle to be contained on the syringe bayonet socket according to pattern magnitude in the die cavity, take out the piston in the syringe,, add in the syringe of being furnished with different big small pinheads respectively and cover piston the liquid silica gel lining of different colours.
Syringe, the measuring cup that 3. liquid silica gel lining will be housed placed in the refrigerator refrigeration respectively and handled, with the low temperature curing of slowing down.
4) make finished product: with the syringe of the above-mentioned liquid silica gel lining that different colours is housed respectively lining is injected relevant position in the patrix die cavity, again fabric color is dried; Simultaneously, the solid silica gel bed material that weighing slightly overweights product weight is positioned in the die cavity of counterdie, and close patrix and counterdie carry out vulcanizing treatment, can vulcanize to obtain finished product.
2. the production method of silica gel products according to claim 1 is characterized in that the vulcanizing agent of above-mentioned solid silica gel bed material proportioning 8%～12% when batching.
3. it is that consumption cup half cup liquid silica gel lining is put into and carried out vacuum defoamation in the vacuum machine and handle that the production method of silica gel products according to claim 1, the vacuum defoamation that it is characterized in that aforesaid liquid silica gel lining are handled, and takes out after about 3～5 minutes.
4. the production method of silica gel products according to claim 1 is characterized in that the above-mentioned liquid silica gel lining that refrigerates in the refrigerator after the processing that is placed on can use, to avoid its curing in 6～8 hours time.
5. the production method of silica gel products according to claim 1 is characterized in that aforesaid liquid silica gel lining usefulness is baked the mould platform or baking box is dried fabric color with about 60～100 ℃ temperature.
6. the production method of silica gel products according to claim 1 is characterized in that the proportioning of aforesaid liquid silica gel lining is:
Silica gel 900g～1100g pigment 95g～105g curing agent 95g～105g
Silicone oil diluent 500g～2500g
7. the production method of silica gel products according to claim 1 is characterized in that the proportioning of above-mentioned silicon liquid silica gel lining is:
Silica gel 1000g pigment 100g curing agent 100g silicone oil diluent 2000g
8. the production method of silica gel products according to claim 1 is characterized in that above-mentioned silicone oil diluent is benzinum, toluene or kerosene.
9. the production method of silica gel products according to claim 1 is characterized in that above-mentioned benzinum is for the food-grade boiling point being 60 ℃～120 ℃ benzinum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100296763A CN101172378A (en) | 2007-08-10 | 2007-08-10 | Method for producing silica gel products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100296763A CN101172378A (en) | 2007-08-10 | 2007-08-10 | Method for producing silica gel products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101172378A true CN101172378A (en) | 2008-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100296763A Pending CN101172378A (en) | 2007-08-10 | 2007-08-10 | Method for producing silica gel products |
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| CN (1) | CN101172378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112306A (en) * | 2013-02-16 | 2013-05-22 | 王劲松 | Coloring and sand dyeing process for polyvinyl alcohol/water glass composite silicone product |
| CN103213238A (en) * | 2013-04-18 | 2013-07-24 | 深圳深凯硅胶制品有限公司 | Manufacture method of silicone rubber wine stopper |
-
2007
- 2007-08-10 CN CNA2007100296763A patent/CN101172378A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112306A (en) * | 2013-02-16 | 2013-05-22 | 王劲松 | Coloring and sand dyeing process for polyvinyl alcohol/water glass composite silicone product |
| CN103213238A (en) * | 2013-04-18 | 2013-07-24 | 深圳深凯硅胶制品有限公司 | Manufacture method of silicone rubber wine stopper |
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Open date: 20080507 |