CN1155732A - Process and apparatus for producing substrate sheet for information recording medium, and information recording medium using the same - Google Patents
Process and apparatus for producing substrate sheet for information recording medium, and information recording medium using the same Download PDFInfo
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- CN1155732A CN1155732A CN 95119225 CN95119225A CN1155732A CN 1155732 A CN1155732 A CN 1155732A CN 95119225 CN95119225 CN 95119225 CN 95119225 A CN95119225 A CN 95119225A CN 1155732 A CN1155732 A CN 1155732A
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Abstract
The invention provides a method to produce a substrate sheet whose surface is provided with preset format used for information record medium. The method comprises the following procedures: a roller mold with the surface provided with preset format pattern and a roller corresponding to the roller mold are arranged; a device controlling the gap between the roller mold and the roller; resin is meltingly pressed to form a melted resin sheet; the melted resin sheet crosses through the gap between the roller mold and the roller to form a substrate sheet with pressed preset format. As at least one of the roller mold and the roller is provided with a pair of grooves on the circumferential surface to ensure that the edge of the melted resin sheet is not pressed when crossing through the gap between the roller mold and the roller, so that the formed substrate sheet has good quality and high utility ratio.
Description
The present invention is relevant with the carrier of the method for producing a kind of carrier substrate sheet, the equipment of producing this substrate sheet, this substrate sheet of employing.
With diameter is that 0.6 to 3 micron semiconductor laser beam can be recorded information on the optical recording media such as CD, light-card and the information of the former record of therefrom resetting.
For the reliability that guarantees to write down and reset, usually with on the substrate surface of die press polish recording medium in advance coining go out by a series of recessed fine patterns that constitute with the track address, be referred to as the preformat pattern of putting.
Have a series of meticulous pits and each preformat pattern of projection in order to form with die on substrate sheet, that known method has is injection-molded, compression molding and impression etc.In known method, also comprise a kind of by with a roller die and one through the roller of mirror stone polishing to the molten resin sheet that the is squeezed out pressurization that is clipped in the middle with the method for preformat pattern coining on this molten resin sheet.The throughput rate of this coining method is quite high.
The substrate sheet of the substrate sheet of carrier, particularly optical recording media, best two surfaces are strict mutually parallel, so that accurately write down and playback information.
In order to meet this requirement under the situation that forms substrate sheet with above-mentioned roller die, inventor of the present invention has disclosed a kind of mold apparatus of production information recording medium substrate sheet as shown in Figure 5 in Japanese patent application NO.5-296833.This equipment that is disclosed has been installed a space device 53 at roller die 52 with between the roller 51 of mirror stone polishing, contacts with roller 51 with roller die 52, is used for controlling the gap between roller die 52 and the roller 51.Yet, stable inadequately in the heavy refractive index of sheet material both sides of the edge part with the substrate sheet of this device fabrication.
When forming the preformat pattern in order to boost productivity in the zone of the neighboring edge of substrate sheet, submarginal preformat can be subjected to the double refracting deleterious effect of fringe region.Therefore, need further make the heavily refraction of substrate sheet marginal portion more stable.
Consider the problems referred to above, an object of the present invention is to provide a kind of energy and produce high-quality carrier substrate sheet.
Another object of the present invention is to propose a kind of equipment of producing high-quality carrier substrate sheet.
The 3rd purpose of the present invention is to propose a kind of high-quality carrier.
The present invention comprises the following steps: to be provided with a roller die that has from the teeth outwards with the corresponding pattern of preformat according to the method that has the carrier substrate sheet of preformat on the production surface that first purpose provided; Roller with the relative assortment of roller die is set; A device that is used for the gap between regulation roller die and the roller that all contacts with roller die and roller is being set between roller die and the roller; The fusion pressure resin, formation has the molten resin sheet of preset width; And molten resin sheet introduced the gap, coining goes out the preformat pattern on molten resin sheet, wherein, at least round roller die surface and round the roller surface both one of have an a pair of groove, the both sides of the edge of introducing the molten resin sheet in gap be respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
The present invention comprises according to the equipment that has the carrier substrate sheet of preformat on second production surface that purpose proposed: a roller die that has from the teeth outwards with the corresponding pattern of preformat; Roller with the relative assortment of roller die; A device that is used for the gap between regulation roller die and the roller that is configured between roller die and the roller, all contacts with roller die and roller, and extrusion resin has the molten resin sheet of preset width with formation device, this device is configured to molten resin sheet is introduced the gap, wherein have a pair of groove round the surface of roller die with one of round the surface of roller at least, make molten resin sheet both sides of the edge respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
The present invention is coated in on-chip recording layer according to the 3rd carrier that purpose proposed by a substrate and one deck and constitutes, and wherein substrate is to form with the method that comprises the following steps: a roller die that has from the teeth outwards with the corresponding pattern of preformat is set; Roller with the relative assortment of roller die is set; A device that is used for the gap between regulation roller die and the roller that all contacts with roller die and roller is being set between roller die and the roller; The fusion pressure resin, formation has the molten resin sheet of preset width; And molten resin sheet introduced the gap, coining goes out the preformat pattern on molten resin sheet, wherein, at least round roller die surface and round the roller surface both one of have an a pair of groove, the both sides of the edge of introducing the molten resin sheet in gap be respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
Inventor of the present invention has been found that the main cause that causes the substrate sheet edge heavily to reflect fluctuating is that the edge thickness of molten resin sheet has fluctuating, and the condition that this fluctuating extrudes molten resin sheet changes to some extent and causes.
For instance, if the thickness at edge greater than gap width, when molten resin sheet was introduced the gap, the edge of molten resin sheet just was subjected to excessive force of compression so, this excessive force of compression may make the heavily refraction at substrate sheet edge bigger.
In addition, an embodiment being arranged in original technology of mentioning in front, is to wrap less than the flexible stamp of molten resin sheet width with roller with by a width to be fixed on the roller matrix and the roller die that constitutes is pressed molten resin sheet.Yet this does not successfully improve the stability of the heavy refractive index of optical recording media substrate sheet edge yet.
In the accompanying drawing of this explanation:
Fig. 1 shows an embodiment of the equipment of production information recording medium substrate sheet proposed by the invention;
Fig. 2 A is that equipment shown in Figure 1 2A-2A along the line cuts open the cut-open view of getting;
Fig. 2 B is that equipment shown in Figure 1 has introduced therein that 2A-2A along the line cuts open the schematic cross sectional views of getting under the situation of the resin sheet that extrudes;
Fig. 3 is an employed roller in forming carrier substrate sheet process of another embodiment of the present invention and the schematic cross sectional views of a roller die;
Fig. 4 is the employed roller in forming carrier substrate sheet process of another embodiment of the present invention and the schematic cross sectional views of a roller die;
Fig. 5 is a kind of perspective schematic view of equipment of traditional molded optical recording media substrate sheet; And
Fig. 6 A and 6B are the synoptic diagram that is used for illustrating the cooling device that cools off the resin sheet marginal portion.
Fig. 1 schematically shows an embodiment of the equipment of production information recording medium substrate sheet (being designated hereinafter simply as the recording medium substrate sheet) proposed by the invention.The a pair of sheet material that Fig. 2 A and 2B propose for the present invention forms the cut-open view of roller.
As shown in Figure 1, equipment as this record of production media substrate sheet material of the embodiment of the invention comprises: one has the extruder 6 that the thermoplastic resin powder is carried out the hopper of preheating, one will be molded into the T type pressing mold 5 of molten resin sheet from the molten resin that extruder 6 extrudes, a roller 1, one facing to roller 1, periphery surface is equipped with the roller die 2 that is used for pressing with roller 1 molten resin sheet of flexible stamp 9, and the roller 3 that is used for cooling off resin sheet facing to roller die 2.Roller die 2 is clipped in therebetween molten resin sheet 4 pressurization towards 1 pair on roller, with preformat pattern 7 coining on the periphery surface on molten resin sheet 4.
By Fig. 2 A and 2B as seen, roller die 2 is made of roller matrix 12 and the flexible stamp 9 that is fixed on the roller matrix 12.
Decide gap device 21 and stipulated gap 24 between the preformat patterned surfaces on roller 1 periphery surface and the roller die 2.Decide gap device 21 and join together, carry out machining by pair roller 1 and form with roller 1 over against roller die 2.
On roller 1, have groove 23-1 and 23-2, be used for holding the marginal portion of molten resin sheet.
Even being split into molten resin sheet, the degree of depth of these two grooves can not make its marginal portion pressurized when being the thickest yet.When forming the recording medium substrate sheet, in the marginal portion lead-ingroove of molten resin sheet.Therefore, though shown in Fig. 2 B the such thickness difference of marginal portion 22, the edge can pressurized yet.So just can produce high-quality optical recording media substrate sheet, seldom even can not form marginal portion with high heavy refractive index.
In this embodiment, the size of groove 23-1,23-2 depends on the thickness of the substrate sheet that will produce.Forming under the situation of thickness less than 1 millimeter recording medium substrate sheet (for example being the light-card substrate sheet of 0.4 millimeters thick) degree of depth h
2, that is bottom land is the width h in gap 24 to the relative roller or the distance on roller die surface
12 to 3.5 times, preferably 2 to 3 times.
Forming under the situation of thickness greater than 1 millimeter recording medium substrate sheet (for example being the compact disc substrate sheet material of 1.2 millimeters thick) degree of depth h
2Width h for gap 24
11.3 to 2 times, preferably 1.3 to 1.8 times.
The thickness of the substrate sheet of being produced is depended on by deciding the gap device regulation in gap 24 between roller 1 and the roller die 2.The width h in gap 24
1Preferably to consider the compressibility of the shrinkability of molten resin in the cooling curing process and the molten resin sheet that is subjected to the roller die extruding, be determined again.
At the preformat pattern is not directly with roller surface but under with the situation that is fixed on the flexible stamp formation around the roller surface, width h
1Should determine according to distance from the flexible stamp surface.
Marginal portion for fear of the molten resin sheet between roller 1 and roller die 2 is compressed, and inter-alveolar distance W1 is designed to be not more than 2/3 of antelabium (being the teat of pressing mold 5) width L.Like this, even change to some extent in the scope that can form qualified optical recording media substrate in the condition of between roller 1 and the roller die 2 molten resin sheet being carried out mold pressing, the marginal portion of molten resin sheet can pressurized yet, thereby has prevented abnormal heavy refraction effect.
If the width L of pressing mold antelabium is not less than 300 millimeters, inter-alveolar distance W1 preferably is taken as L-100, and is perhaps smaller.
The width W preferred design of groove becomes the marginal portion of molten resin sheet can not be subjected to the extruding of roller 1 and roller die 2, and therefore, this wide rate is preferably got (L/6)+10, and is perhaps bigger.
In this embodiment, in order to form the optical recording media substrate sheets by part extrusion molten resin sheet between the groove of using flexible stamp 9 and roller 14, inter-alveolar distance W1 preferably is not less than the width W 2 of the flexible stamp 9 on the roller die periphery surface.That is to say that pressing mold antelabium width L, inter-alveolar distance W1, flexible stamp width W 2 preferably satisfy following relation:
2L/3 〉=W1 〉=W2 (for L＜300 millimeter)
L-100 〉=W1 〉=W2 (for L 〉=300 millimeter)
Fig. 3 is the schematic cross sectional views of roller 1 and roller die 2 combinations, is used for illustrating an alternative embodiment of the invention.In Fig. 3, hold the groove of the marginal portion of molten resin sheet and open on the roller matrix 12 that constitutes roller die 2.
The width of groove 23-1,23-2 and the degree of depth preferably all with embodiment illustrated in fig. 2 in identical mode design.
The width W 2 of inter-alveolar distance W1, flexible stamp 9, antelabium width L satisfy following the relation as being defined as in embodiment illustrated in fig. 2:
2L/3 〉=W1 〉=W2 (for L＜300 millimeter)
L-100 〉=W1 〉=W2 (for L 〉=300 millimeter)
Fig. 4 is the schematic cross sectional views of roller 1 and roller die 2 combinations, is used for illustrating another embodiment of the present invention.In Fig. 4, space device 21 is added on the roller matrix 12, and groove 23-1,23-2 open on roller 1.In this configuration, the width of the degree of depth of corresponding groove, die, antelabium wide also with in front embodiment in the same design.
In various embodiments of the present invention, groove 23-1,23-2 normally with the surface of the plant equipment pair roller of fine turning lathe and so on or roller matrix carry out machining open roller 1 and 1 or roller matrix 12 on.Because the roller surface is very big to the surface roughness affect of formed substrate, so the machining accuracy on roller surface preferably can reach 0.2 micron or higher precision, and recommendable is 0.1 micron or higher precision.The back side of flexible stamp also can influence the substrate surface roughness, therefore preferably also is worked into above-mentioned smooth precision.
In above each embodiment, roller die 2 all is to have fixed flexible seal to touch 9 formations on the periphery surface of roller matrix 12.Yet the structure of roller die 2 not necessarily will be like this, also the preformat pattern directly can be engraved on the periphery surface of roller matrix 12 of roller die 2, and the zone between groove 23-1 and groove 23-2 forms the preformat pattern.
Substrate sheet forming device of the present invention preferably is furnished with one such as blowing device and the such cooling device of chill roll, so that quicken substrate edge cooling partly once leaving roller die 2 in molten resin sheet at once.
Specifically, preferably use not contact cooling device, because this device is not easy to cause stress in substrate resemble the blowing device.An example of this cooling device is at the pneumatic shuttle 61 shown in Fig. 6 A.
When using this pneumatic shuttle, the minimum air pressure of the air-flow that blows out from pneumatic shuttle depends on the viscosity and the thickness of resin sheet.For acrylic resin sheet or the polycarbonate resin plate of thickness from 0.3 millimeter to 1.4 millimeter, this air pressure is preferably got 5 to 50 gram/square centimeters, and recommendable is 10 to 20 gram/square centimeters.
The air pressure dress presses 61 can be any device that can form one air curtain on surface, molten resin sheet marginal portion.The zone of pressure that air knife is for example arranged and constitute by ventilative porosint.Pneumatic shuttle 61 preferably directly is placed in the tight below, gap between roller 1 and the roller die 2.
There is a kind of pneumatic shuttle that air-flow is directly blowed to the resin sheet marginal portion by narrow slit or opening can change the direction of the air-flow that blows to the resin sheet marginal portion.The angle θ that blows of the relative resin sheet marginal portion shown in Fig. 6 B preferably hanks and is slightly smaller than 90 ℃, for example in the scope about 45 ° to 80 °, can reduce to turn to the airshed of preformat pattern coining portion like this, thus the too early cooling that has prevented from not wish to take place to the preformat pattern coining portion of resin sheet.
As mentioned above, according to these embodiment of the present invention, the heavy refractive index of marginal portion can be remained on the quite low value, even also it doesn't matter for some variation of the resin flow irregularity in resin extrusion rate and the extruder T pressing mold, therefore near the preformat coining district the substrate sheet edge also is available for the substrate of making optical recording media.
So, can be on the Width of die abundant Boulez preformat pattern, form efficient thereby improved substrate.
Below in conjunction with several embodiment the present invention is described in more detail.
Example 1
Preparing roller 1 shown in Figure 2 and roller die 2, to produce thickness be that 0.4 millimeter the step of light-card substrate sheet is as follows:
The roller matrix of roller 1 is used is chrome-faced, through the stainless steel cylinder of mirror stone polishing, surfaceness is not more than 0.1 micron, diameter is 300 millimeters, the roller length surface is 500 millimeters.The roller matrix is through machining, and taking leave of roller matrix the inner at branch respectively is the groove that 50 millimeters to 125 millimeters appropriate section respectively forms one 75 mm wide, 0.6 millimeters deep.
Then, the stainless steel band of four 25 mm wides, 942.4 millimeters long, 0.6 millimeters thick is screwed round the two ends of roller respectively, every end two bands, as deciding gap device 21, the connecting portion of band diverges to mutually, thereby obtains roller 1.
The roller matrix of roller die 2 is chrome-faceds, through bright finished stainless steel cylinder, surfaceness is not more than 0.1 micron, diameter is 300 millimeters, the roller length surface is 500 millimeters.On this roller matrix, processed the pickup groove of two 10 millimeters deep at periphery surface, the die fixture that will illustrate below being used for embedding.
Used die is 250 mm wides, 900 millimeters long, 0.2 millimeters thick, makes with nickel.On the surface of die, four preformat patterns of a light-card have been formed.This preformat pattern has 3 microns wide, 85 millimeters long corresponding to one, and mutual spacing is the light-card preformat of a series of rail grooves of 17 microns.
On the back side of two ends on the length direction of die, with electron beam fusing soldering welder (brand name: EBW6LB, hitachi company) respectively melting welding the fixture of making by the stainless steel of 10 millimeters thick, 15 mm wides, 400 millimeters long, lap width is 5 millimeters.
Then, by fixture being embedded the respective fixation groove, die being tightened, die is fixed on the roller matrix 12 with wedge.
It is the extruder that 375 millimeters pressing mold and diameter are 35 millimeters that this sheet material forming device has an antelabium width.Blow out the air that air pressure is 17 gram/square centimeters from the air knife that is placed in tight below, gap with angle θ=50 ° (see figure 6).
In this sheet material forming device, the width h1 in gap 24 is 0.4 millimeter, and die thickness is 0.2 millimeter, and the total depth h2 of slot part 23-1,23-2 is 1.2 millimeters.
At mould temperature is that 350 ℃, the rate of extruding are that 11 kilograms/hour, the rate of batching are under 1.5 meters/minute the condition, 24 hours continuously with a kind of resin, bisphenol-A class polycarbonate (brand name: PANLITE L-1250, Teijin Kasei K.K.) has been squeezed into sheet material.
At the center section of 250 mm wides of resulting light-card substrate sheet, preformat pattern coining is quite satisfied, and the sheet material quality is fine, and thickness is 0.4 millimeter ± 3 microns, and unipath heavy refraction is not higher than 8 millimicrons.In the marginal portion of sheet material, though thickness is very inhomogeneous, heavy change in refraction is little during sheet material forms, and remains on below 10 millimicrons.The double refracting this variation in marginal portion extrudes direction center section (being pattern coining district) to sheet material and does not produce harmful effect.During forming, 24 hours sheet materials do not need to adjust the sheet material formation condition.
Example 2
Preparing roller 1 shown in Figure 3 and roller die 2, to produce thickness be that 0.4 millimeter the step of light-card substrate sheet is as follows.
The roller matrix of roller die 2 is used is chrome-faced, through bright finished stainless steel cylinder, surfaceness is not more than 0.1 micron, diameter is 500 millimeters, length is 850 millimeters.The roller matrix is through machining, and taking leave of roller matrix two ends at branch respectively is the groove that 50 millimeters to 200 millimeters appropriate section respectively forms one 150 mm wide, 0.4 millimeters deep.
On this roller matrix, processed the pickup groove of two 10 millimeters deep at periphery surface, the die fixture that will illustrate below being used for embedding.
Used die is 550 mm wides, 1570 millimeters long, 0.2 millimeters thick, makes with nickel.Formed 70 preformat patterns of a light-card on the surface of die, situation is identical with in the example 1 those.
On the back side of two ends on the length direction of die, with electron beam fusing soldering welder (brand name: EBW6LB, hitachi company) respectively melting welding the fixture of making by the stainless steel of 10 millimeters thick, 15 mm wides, 550 millimeters long, lap width is 5 millimeters.
Then, by fixture being embedded the respective fixation groove, die being tightened, die is fixed on the roller matrix 12 with wedge.
Then, the stainless steel band of four 25 mm wides, 1570 millimeters long, 0.6 millimeters thick is screwed round the two ends of roller respectively, every end two bands, as deciding gap device 21, the connecting portion of band diverges to mutually, thereby obtains roller die 2.
Being installed on the sheet material forming device shown in Figure 1 with roller die 2 of roller 1, the pressure control of 1 pair of roller die 2 of roller is in 120 kg power.This equipment with controlled by decide the roller matrix 12 formation molten resin sheet that gap device 21 contacts with roller 1.
Blow out the air that air pressure is 20 gram/square centimeters from the air knife that is placed in tight below, gap with angle θ=45 ° (see figure 6).
It is the extruder that 700 millimeters pressing mold and diameter are 35 millimeters that this sheet material forming device has an antelabium width.
In this sheet material forming device, the width h1 in gap 24 is 0.4 millimeter, and die thickness is 0.2 millimeter, and the total depth of slot part 23-1,23-2 is 1.2 millimeters.
At mould temperature is that 350 ℃, press ratio are that 11 kilograms/hour, the rate of batching are under 1.5 meters/minute the condition, 24 hours continuously with a kind of resin, bisphenol-A class polycarbonate (brand name: PANLITE L-1250, Teijin Kasei K.K.) has been squeezed into sheet material.
At the center section of 250 mm wides of resulting light-card substrate sheet, preformat pattern coining is quite satisfied, and the sheet material quality is fine, and thickness is 0.4 millimeter ± 3 microns, and unipath heavy refraction is not higher than 8 millimicrons.In the marginal portion of sheet material, though thickness is very inhomogeneous, heavy change in refraction is little during sheet material forms, and remains on below 10 millimicrons.The double refracting this variation in marginal portion extrudes direction center section (being pattern coining district) to sheet material and does not produce harmful effect.During forming, 24 hours sheet materials do not need to adjust the sheet material formation condition.
Reference examples 1
On roller 1, do not have groove 23-1, the 23-2, with example 1 in identical mode be squeezed into the light-card substrate sheet in continuous 24 hours.
The result is, at the center section of resulting light-card substrate sheet, and preformatting district just, the precision of preformat pattern coining is satisfied, heavily refraction is not higher than 8 millimicrons.Yet in the marginal portion of substrate sheet, heavily refraction is unstable, is up to about 50 millimicrons in some part.In the preformat pattern coining district near high heavy refracted portion, heavily refraction reaches about 20 millimicrons, so these zones are useless for the light-card substrate sheet.
Claims (14)
1. a production is used for having on carrier, the surface method of the substrate sheet of preformat, it is characterized in that described method comprises the following steps:
A roller die that has from the teeth outwards with the corresponding pattern of preformat is set;
Roller with the relative assortment of described roller die is set;
The device in the gap between a described roller die of regulation and the described roller is set, and described device is configured between described roller die and the described roller, contacts with described roller with described roller die;
A kind of resin of fusion pressure, formation has the molten resin sheet of preset width; And
Molten resin sheet is introduced described gap, coining goes out the preformat pattern on molten resin sheet, wherein, at least have a pair of groove round the surface of described roller die with one of round the surface of described roller, the both sides of the edge of introducing the molten resin sheet in gap be respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
2. method according to claim 1 is characterized in that the thickness at the edge of wherein said molten resin sheet remains unchanged during by the gap in molten resin sheet.
3. method according to claim 1 is characterized in that the distance (h2) between the surface of the end of wherein said groove and described roller or roller die satisfies formula (1) or (2):
2(h1)≤(h2)≤3.5(h1) (1)
1.3(h1)≤(h2)≤2(h1) (2)
(h1) is described gap width in the formula, and formula (1) is applicable to that thickness is not more than 1 millimeter substrate, and formula (2) is applicable to that thickness is greater than 1 millimeter substrate.
4. method according to claim 2 is characterized in that the distance (h2) between the surface of the end of wherein said groove and described roller or roller die satisfies formula (3) or (4):
2(h1)≤(h2)≤3(h1) (3)
1.3(h1)≤(h2)≤1.8(h1) (4)
(h1) is described gap width in the formula, and formula (3) is applicable to that thickness is not more than 1 millimeter substrate, and formula (4) is applicable to that thickness is greater than 1 millimeter substrate.
5. method according to claim 1 is characterized in that the distance (W1) between the wherein said groove, the width (W2) of die and the width (L) of pressing mold antelabium satisfy formula (5) or (6):
2L/3≥W1≥W2 (5)
L－100≥W1≥W2 (6)
Its Chinese style (5) is applicable to L＜300 millimeter, and formula (6) is applicable to L 〉=300 millimeter.
6. method according to claim 1 is characterized in that wherein said resin is a polycarbonate resin.
7. method according to claim 1 is characterized in that the width (M) of wherein said groove satisfies formula (7):
M≥{(L/6)+10} (7)
8. a production is used for having on carrier, the surface equipment of the substrate sheet of preformat, it is characterized in that described equipment comprises:
A roller die that has from the teeth outwards with the corresponding pattern of preformat;
Roller with the relative assortment of described roller die;
The device in the gap between a described roller die of regulation and the described roller, described device is configured between described roller die and the described roller, contacts with described roller with described roller die; And
A kind of resin of extruding has the molten resin sheet of preset width with formation a device, described device is configured to molten resin sheet is introduced described gap, wherein have a pair of groove round the surface of described roller die with one of round the surface of described roller at least, make molten resin sheet both sides of the edge respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
9. equipment according to claim 8 is characterized in that wherein said groove has predetermined depth, makes the edge thickness of described molten resin sheet be subjected at the middle part of described molten resin sheet remaining unchanged when described roller and roller die push.
10. equipment according to claim 8 is characterized in that the distance (h2) between the surface of the end of wherein said groove and described roller or roller die satisfies formula (1) or (2):
2(h1)≤(h2)≤3.5(h1) (1)
1.3(h1)≤(h2)≤2(h1) (2)
(h1) is described gap width in the formula, and formula (1) is applicable to that thickness is not more than 1 millimeter substrate, and formula (2) is applicable to that thickness is greater than 1 millimeter substrate.
11. equipment according to claim 9 is characterized in that the distance (h2) between the surface of the end of wherein said groove and described roller or roller die satisfies formula (3) or (4):
2(h1)≤(h2)≤3(h1) (3)
1.3(h1)≤(h2)≤1.8(h1) (4)
(h1) is described gap width in the formula, and formula (3) is applicable to that thickness is not more than 1 millimeter substrate, and formula (4) is applicable to that thickness is greater than 1 millimeter substrate.
12. equipment according to claim 8 is characterized in that the distance (W1) between the wherein said groove, the width (W2) of die and the width (L) of pressing mold antelabium satisfy formula (5) or (6):
2L/3≥W1≥W2 (5)
L－100≥W1≥W2 (6)
Its Chinese style (5) is applicable to L＜300 millimeter, and formula (6) is applicable to L 〉=300 millimeter.
13. equipment according to claim 8 is characterized in that the width (M) of wherein said groove satisfies formula (7):
M≥{(L/6)+10} (7)
14. one kind is coated with the carrier of pressing described on-chip recording layer to constitute by a substrate and one deck, it is characterized in that wherein said substrate is to form with the method that comprises the following steps:
A roller die that has from the teeth outwards with the corresponding pattern of preformat is set;
Roller with the relative assortment of described roller die is set;
The device in the gap between a described roller die of regulation and the described roller is set, and described device is configured between described roller die and the described roller, contacts with described roller with described roller die;
A kind of resin of fusion pressure, formation has the molten resin sheet of preset width; And
Molten resin sheet is introduced described gap, coining goes out the preformat pattern on molten resin sheet, wherein, at least have a pair of groove round the surface of described roller die with one of round the surface of described roller, the both sides of the edge of introducing the molten resin sheet in gap be respectively corresponding groove and with the surface of the roller of roller that has groove or the relative assortment of roller die or roller die between introduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95119225 CN1155732A (en) | 1994-11-11 | 1995-11-10 | Process and apparatus for producing substrate sheet for information recording medium, and information recording medium using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP301591/94 | 1994-11-11 | ||
| CN 95119225 CN1155732A (en) | 1994-11-11 | 1995-11-10 | Process and apparatus for producing substrate sheet for information recording medium, and information recording medium using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1155732A true CN1155732A (en) | 1997-07-30 |
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ID=5081910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95119225 Pending CN1155732A (en) | 1994-11-11 | 1995-11-10 | Process and apparatus for producing substrate sheet for information recording medium, and information recording medium using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1155732A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834243A (en) * | 2011-03-25 | 2012-12-19 | 富士胶片株式会社 | Irregular surface sheet and method for manufacturing same |
| CN102922857A (en) * | 2012-11-18 | 2013-02-13 | 大连恒大高新材料开发有限公司 | Cold pressing roller of composite geomembrane laminator |
| CN112895410A (en) * | 2019-12-04 | 2021-06-04 | 斯沃奇集团研究和开发有限公司 | Method for marking decorative article |
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1995
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834243A (en) * | 2011-03-25 | 2012-12-19 | 富士胶片株式会社 | Irregular surface sheet and method for manufacturing same |
| CN102922857A (en) * | 2012-11-18 | 2013-02-13 | 大连恒大高新材料开发有限公司 | Cold pressing roller of composite geomembrane laminator |
| CN112895410A (en) * | 2019-12-04 | 2021-06-04 | 斯沃奇集团研究和开发有限公司 | Method for marking decorative article |
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