CN1269627C - Cellutloid sheet material for producing ping-pong ball - Google Patents
Cellutloid sheet material for producing ping-pong ball Download PDFInfo
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- CN1269627C CN1269627C CN 03132251 CN03132251A CN1269627C CN 1269627 C CN1269627 C CN 1269627C CN 03132251 CN03132251 CN 03132251 CN 03132251 A CN03132251 A CN 03132251A CN 1269627 C CN1269627 C CN 1269627C
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Abstract
The present invention relates to a celluloid sheet material used for manufacturing ping-pong balls, which uses dehydrated nitrocellulose as a main material, and propanone and ethanol are added to serve as solvents; zinc oxide powder serves as a filling material, and camphor powder is added to serve as a plasticizer; ethyl acetate is added to serve as a flexibilizer, and then pigment and auxiliary agents are added; the celluloid sheet material used for manufacturing ping-pong balls is prepared by the procedures of heating, kneading, filtering, glue refining, extending by pressing, hot-pressing, flaking, drying, pressure drying and pressure flattening. Because the present invention adopts zinc oxide powder as the filling material instead of traditional titanium white powder as the filling material, the ping-pong balls manufactured by the present invention have the advantages of high strength, fine toughness, stable centre of gravity, sufficient elasticity, fine sense of balls commented by athletes, etc. The ping-pong balls manufactured by the celluloid sheet material have the characteristics of high strength, fine toughness, stable centre of gravity, sufficient elasticity and the like, and athletes have fine sense of balls.
Description
Technical field:
The present invention relates to a kind of celluloid sheet stock.Particularly relate to a kind of making celluloid sheet stock for table tennis.
Background technology:
Celluloid sheet stock is a kind of material of making table tennis.Each table tennis manufacturer all adopts international yellow match sheet as the material of making table tennis at present.International yellow match sheet is to adopt titanium dioxide to make inserts, with table tennis of its system usefulness have that intensity is low, poor toughness, crank, poor flexibility, sportsman reflect shortcomings such as feel of the ball difference.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of intensity height, good toughness, stable gravity center, elasticity foot, sportsman to reflect the making celluloid sheet stock for table tennis that the feel of the ball is good.
The object of the present invention is achieved like this: a kind of making celluloid sheet stock for table tennis, be characterized in that with the nitrocellulose after the dehydration be major ingredient, adding acetone and alcohol is solvent, Zinc Oxide is an inserts, the interpolation camphor powder makes plasticizer and ethyl acetate is made flexibilizer, add pigment and auxiliary agent again, through the kneading of heating, filter that discharging, refining glue laminated are prolonged, hot pressing, flaking, dry, press dry after flattening operation make celluloid sheet stock for table tennis.
The former proportion by subtraction of the weight of each component is respectively in its raw material: nitrocellulose 60-70%, Zinc Oxide 1～5%, camphor powder 15-25%, ethyl acetate 0.2～0.5%, pigment 0.05～0.15%, surplus are alcohol and acetone, and the summation of each component is 100%.
Because the present invention adopts the Zinc Oxide inserts to replace traditional titanium dioxide inserts, the table tennis that adopts the present invention to make has intensity height, good toughness, stable gravity center, elasticity foot, sportsman and reflects characteristics such as the feel of the ball is good, its physical and mechanical properties test data such as following table:
| Index names | Index | Measured data |
| Hot strength (ox/millimeter 2) | ≥53.9 | 56.7 |
| Elongation at break (%) | ≥20 | 22 |
| Proportion (gram per centimeter 3) | ≥1.395 | 1.402 |
| Water absorption rate (%) | ≤3 | 2.2 |
| Volatility (%) | ≤3 | 2.15 |
| Dissolubility (hour) | ≤2 | ＜2 |
| Thermal deformation poor (millimeter) | ≤1 | 0.3 |
Description of drawings:
Fig. 1 is technological process of production figure of the present invention.
The specific embodiment:
As Fig. 1, the present invention is a kind of making celluloid sheet stock for table tennis.It is with the dehydration after nitrocellulose (nitrocotton) be major ingredient, adding acetone and alcohol is that solvent, Zinc Oxide are inserts, the interpolation camphor powder makes plasticizer and ethyl acetate is made flexibilizer, add pigment and color-fixing agent etc. again, mediate, filter that (filter press press filtration), rubber mixing machine refining glue laminated are prolonged, hot press is hot-forming through kneader, again through chipper flaking, drying room oven dry, press press dry flatten the backlash disk celluloid sheet stock for table tennis.
The former proportion by subtraction of the weight of each component is respectively in its raw material: nitrocellulose 60-70%, Zinc Oxide 1～5%, camphor powder 15-25%, ethyl acetate 0.2～0.5%, pigment 0.05～0.15%, surplus are alcohol and acetone, and the summation of each component is 100%.
Embodiment 1:
Get nitrocellulose 550kg, alcohol 120kg and acetone 67.5kg, Zinc Oxide 10kg, camphor powder 250kg, ethyl acetate 2kg and pigment 0.5kg, basic production process is as follows:
1, nitrocotton is added the stir back dehydration of a certain amount of grain technical grade ethanol;
2, add synthetic acetone, ethanol, synthetic camphor powder, ethyl acetate, pigment, Zinc Oxide inserts and the color-fixing agent etc. of quantitative proportioning, put into the 500L kneader, heat and mediate after 90 minutes, discharging;
3, drop temperature is controlled at 68 ± 2 ℃, filters with beautiful silk cloth, stainless (steel) wire during discharging;
4, put into rubber mixing machine after the filtration, added hot calender 2.5 hours, piece material blanking temperature is controlled at 68 ± 2 ℃, and drinks content is controlled at 15～16%;
5, with 200 tons of press pressurization 200kg hot pressing 5 hours, the piece material was parked 72 hours;
6, cut into slices by chipper, generally have two kinds, a kind of is monolithic, and thickness calibration is 79～83 μ m, and another kind is a biplate, and thickness calibration is 52～56 μ m (oven dry backs);
7, the laggard drying room of cutting into slices, be steam heated to 40～45 ℃, baking 3 days is hung in flat baking 2 hours then, and the sheet stock drinks content that goes out drying room is controlled in 3～4% intervals, through 400T press pressurization 180kg, heat release is simultaneously put cold, pressurizes 2 hours, sheet stock is pressed dry flatten no deflection typing, and detect check by the cell standard, divide top grade material, one-level material check and accepting storing.
Embodiment 2:
Get nitrocellulose 700kg, alcohol 70kg and acetone 23kg, Zinc Oxide 50kg, camphor powder 150kg, ethyl acetate 5kg and pigment 2kg, its production process is as follows:
1, nitrocotton is added the stir back dehydration of a certain amount of grain technical grade ethanol;
2, add synthetic acetone, ethanol, synthetic camphor powder, ethyl acetate, pigment, Zinc Oxide inserts and the color-fixing agent etc. of quantitative proportioning, put into the 500L kneader, heat and mediate after 60 minutes, discharging;
3, drop temperature is controlled at 68 ± 2 ℃, filters with beautiful silk cloth, stainless (steel) wire during discharging;
4, put into rubber mixing machine after the filtration, added hot calender 2.5 hours, piece material blanking temperature is controlled at 68 ± 2 ℃, and drinks content is controlled at 15～16%;
5, with 200 tons of press pressurization 150kg hot pressing 6 hours, the piece material was parked 96 hours;
6, cut into slices by chipper, generally have two kinds, a kind of is monolithic, and thickness calibration is 79～83 μ m, and another kind is a biplate, and thickness calibration is 52～56 μ m (oven dry backs);
7, the laggard drying room of cutting into slices, be steam heated to 40～45 ℃, baking 2 days is hung in flat baking 3 hours then, and the sheet stock drinks content that goes out drying room is controlled in 3～4% intervals, through 300T press pressurization 200kg, heat release is simultaneously put cold, pressurizes 3 hours, sheet stock is pressed dry flatten no deflection typing, and detect check by the cell standard, divide top grade material, one-level material check and accepting storing.
Embodiment 3:
Get nitrocellulose 600kg, alcohol 110kg and acetone 61kg, Zinc Oxide 25kg, camphor powder 200kg, ethyl acetate 3kg and pigment 1kg, its production process is as follows:
1, nitrocotton is added the stir back dehydration of a certain amount of grain technical grade ethanol;
2, add synthetic acetone, ethanol, synthetic camphor powder, ethyl acetate, pigment, Zinc Oxide inserts and the color-fixing agent etc. of quantitative proportioning, put into the 500L kneader, heat and mediate after 120 minutes, discharging;
3, drop temperature is controlled at 68 ± 2 ℃, filters with beautiful silk cloth, stainless (steel) wire during discharging;
4, put into rubber mixing machine after the filtration, added hot calender 2 hours, piece material blanking temperature is controlled at 68 ± 2 ℃, and drinks content is controlled at 15～16%;
5, with 200 tons of press pressurization 250kg hot pressing 4 hours, the piece material was parked 48 hours;
6, cut into slices by chipper, generally have two kinds, a kind of is monolithic, and thickness calibration is 79～83 μ m, and another kind is a biplate, and thickness calibration is 52～56 μ m (oven dry backs);
7, the laggard drying room of cutting into slices, be steam heated to 40～45 ℃, baking 4 days is hung in flat baking 1 hour then, and the sheet stock drinks content that goes out drying room is controlled in 3～4% intervals, through 400T press pressurization 180kg, heat release is simultaneously put cold, pressurizes 1 hour, sheet stock is pressed dry flatten no deflection typing, and detect check by the cell standard, divide top grade material, one-level material check and accepting storing.
Claims (1)
1, a kind of making celluloid sheet stock for table tennis, it be with the dehydration after nitrocellulose be major ingredient, adding acetone and alcohol is solvent, Zinc Oxide is an inserts, the interpolation camphor powder makes plasticizer and ethyl acetate is made flexibilizer, add pigment and color-fixing agent again, through the kneading of heating, filter, the refining glue laminated is prolonged, hot pressing, flaking, oven dry, press dry flatten after the operation make celluloid sheet stock for table tennis, the percentage by weight of each component is respectively in the raw material: nitrocellulose 60-70%, Zinc Oxide 1～5%, camphor powder 15-25%, ethyl acetate 0.2～0.5%, pigment 0.05～0.2%, surplus is alcohol and acetone, the summation of each component is 100%, time of mediating of heating is 1～2 hour, drop temperature is controlled at 68 ± 2 ℃, put into rubber mixing machine after the filtration, added hot calender 2～3 hours, piece material blanking temperature is controlled at 68 ± 2 ℃, and drinks content is controlled at 15～16%; Press pressurization 150～250kg hot pressing 4～6 hours, the piece material was parked 2～4 days; The laggard drying room of cutting into slices is steam heated to 40～45 ℃, flat baking 1～3 hour, hang baking 2～4 days then, the sheet stock drinks content that goes out drying room is controlled at 3～4%, through 300～500T press pressurization, 150～200kg, heat release is simultaneously put cold, pressurizes 1～3 hour, sheet stock is pressed dry flatten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132251 CN1269627C (en) | 2003-08-06 | 2003-08-06 | Cellutloid sheet material for producing ping-pong ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132251 CN1269627C (en) | 2003-08-06 | 2003-08-06 | Cellutloid sheet material for producing ping-pong ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473702A CN1473702A (en) | 2004-02-11 |
| CN1269627C true CN1269627C (en) | 2006-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132251 Expired - Fee Related CN1269627C (en) | 2003-08-06 | 2003-08-06 | Cellutloid sheet material for producing ping-pong ball |
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| CN (1) | CN1269627C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704963B (en) * | 2009-11-06 | 2011-07-06 | 江阴道勃尔体育用品有限公司 | Manufacturing method of celluloid sheet stock for table tennis |
| CN102838782B (en) * | 2012-09-06 | 2015-04-22 | 无锡市科恩塑胶有限公司 | Celluloid substituted material for table tennis and manufacturing method |
| CN103172910B (en) * | 2013-03-06 | 2015-02-11 | 上海红双喜江阴华士体育用品有限公司 | Environment-friendly non-celluloid table-tennis-use material and preparation method thereof |
| CN103172911B (en) * | 2013-04-19 | 2016-05-04 | 无锡市科恩塑胶有限公司 | A kind of table tennis Bexoid and manufacture method |
| CN103394180B (en) * | 2013-08-12 | 2016-02-17 | 信阳农林学院 | Anti-deformation table tennis preparation method |
| CN103992514B (en) * | 2014-06-18 | 2016-08-17 | 富阳市振华文体用品厂 | Cell and processing technology thereof |
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2003
- 2003-08-06 CN CN 03132251 patent/CN1269627C/en not_active Expired - Fee Related
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| CN1473702A (en) | 2004-02-11 |
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