CN1160185C - Method and implement for producing bidirectional stretching-resistant tube-shape compound diaphragm and plain compound liaphragm - Google Patents
Method and implement for producing bidirectional stretching-resistant tube-shape compound diaphragm and plain compound liaphragm Download PDFInfo
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- CN1160185C CN1160185C CNB001131591A CN00113159A CN1160185C CN 1160185 C CN1160185 C CN 1160185C CN B001131591 A CNB001131591 A CN B001131591A CN 00113159 A CN00113159 A CN 00113159A CN 1160185 C CN1160185 C CN 1160185C
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Abstract
The present invention provides a production method for bidirectional stretching-resistant barrel-shaped compound diaphragms and bidirectional stretching-resistant plain compound diaphragms. The method comprises: 1) a barrel-shaped plastic diaphragm made of monolayer or multilayer materials is prepared by extruding and cooling through an extrusion diaphragm-blowing machine; the barrel-shaped plastic diaphragm is stretched in the single warp direction and is wounded to be used as an outer layer diaphragm after being cooled and shaped; 2) a barrel-shaped plastic diaphragm with a hot-melt adhesive layer is prepared by the extrusion of the extrusion diaphragm-blowing machine; after the barrel-shaped plastic diaphragm is reheated to a stretching temperature condition on a diaphragm-blowing heat stretching machine, the diameter of the barrel-shaped plastic diaphragm is enlarged to reach the requirements of a weft stretching ratio; then, the barrel-shaped plastic diaphragm is cooled and folded flatly and is wound to be used as an inner layer diaphragm; 3) the outer layer diaphragm and the inner layer diaphragm are compounded by an inner diaphragm coating machine, and the bidirectional stretching-resistant barrel-shaped compound diaphragm is obtained. If the bidirectional stretching-resistant barrel-shaped compound diaphragm is cut, a bidirectional stretching-resistant plain compound diaphragm can be obtained. The present invention also provides a device for producing the diaphragms.
Description
Technical field:
What the present invention relates to is a kind of by compound or be higher than the production method of the compound peaceful film compound film sheet of bidirectional stretch tubular compound film sheet of the plastic film of broadwise tensile strength and the plastic film that broadwise tensile strength is higher than warp-wise tensile strength by warp-wise tensile strength through the unidirectional plastic foil that draws of, latitude.
Background technology:
Plastic foil and coextrusion composite membrane are quite general as the application of the base material of packaging material and earthwork engineering membrane material.For the waste that reduces resource with widen plastic foil carries engineering at packing and soil range of application, people have utilized tensile strength behind the plastic hot stretch orientation to increase the stretch orientation characteristic of this macromolecular material of 5 to 15 times, invent and provide many stretching classes packing base materials and goods, as the simple tension arrowband through weaving the composite membrane of multiple film simple tension film and unstretching film, the composite membrane of biaxial stretching film and unstretching film thereof etc.But more using in the wide-range owing to reclaim difficulty or limited because of tear resistance is relatively poor.Given this, the applicant of present patent application has proposed and can economize on resources, and bidirectional stretch intensity height, tear resistance are good, and the scope of application is wide, be easy to reclaim, be beneficial to " the bidirectional tensile plastic composite film sheet " and " the bidirectional tensile plastic composite film sheet of hot property excellence " of environmental protection.
Summary of the invention:
In view of above reason, the objective of the invention is to produce energy savings in order to provide a kind of, bidirectional stretch intensity height, tear resistance is good, the scope of application is wide, is easy to reclaim, and is beneficial to the production method of the bidirectional stretch tubular compound film sheet peace film compound film sheet of environmental protection.
The object of the present invention is achieved like this:
Production method of the present invention comprises:
1), extrude the cylindrical plastic film sheet that cooling makes the single or multiple lift material with single or multiple lift coextrusion inflation film manufacturing machine, the flat cylindrical plastic film sheet of draw ratio doubling on demand carries out the warp-wise simple tension on the roll-type heat stretching machine, behind the cooling and shaping with its rolling as outer membrane;
2), extrude the cylindrical plastic film sheet that makes band PUR bonding layer with multi-layer co-extruded inflation film manufacturing machine, on the blown film heat stretching machine cylindrical plastic film sheet reheated reach the draft temperature condition after, compressed air is fed the inner chamber of cylindrical plastic film sheet, control air pressure and temperature make its enlarged-diameter reach the requirement of broadwise draw ratio, and the cooling folding is flat then makes inner layer film with its rolling;
3), with 1) the obtained outer membrane of step and 2) the obtained inner layer film of step is compound through interior coating machine, compound tense, be on the storing hollow shaft of coating machine in outer membrane is enclosed within, in inner layer film is placed on another unwinding rack of coating machine and make it to place the hollow passageway that inner layer film one end passes the storing hollow shaft in the outer membrane, inner layer film and outer membrane are led on the interior multiple film sizing mechanism synchronously, heat through circulating air, thermosol adhesive layer on the inner layer film is reheated fusion and outer membrane and inner layer film are bonded together, effect through at least one pair of pressure roller, just be combined into behind the cooling and shaping by warp, latitude simple tension plastic film compound or be higher than the plastic film of broadwise tensile strength and the compound bidirectional stretch tubular compound film sheet of plastic film that broadwise tensile strength is higher than warp-wise tensile strength by warp-wise tensile strength, or outer membrane is placed on the unwinding rack of interior coating machine, and the fixed length outer membrane of backing off, put into the outer membrane inner chamber after inner layer film being put into the material-storing box of coating machine after back and forth folding, the inner layer film and the outer membrane of pulling out fixed length are flush, in, the multiple film sizing mechanism that is pulled into interior coating machine that outer membrane is synchronously continuous, heat through circulating air, thermosol adhesive layer on the inner layer film is reheated fusion and outer membrane and inner layer film are bonded together, through the effect of at least one pair of pressure roller, just be combined into behind the cooling and shaping by warp, latitude simple tension plastic film compound or be higher than the plastic film of broadwise tensile strength and the compound bidirectional stretch tubular compound film sheet of plastic film that broadwise tensile strength is higher than warp-wise tensile strength by warp-wise tensile strength;
4), bidirectional stretch tubular compound film sheet is cut open by the centre joint or cut open and just make the flat film compound film sheet of bidirectional stretch from both sides.
In the said method with outer membrane and inner layer film compound tense, be on the storing hollow shaft of coating machine in outer membrane is placed on, in inner layer film is placed on as mesopelagic layer on the unwinding rack of material-storing box mechanism one end of coating machine, the fixed length mesopelagic layer of backing off, the unstretched skin of the inner layer film of another broadwise simple tension or one deck has the inner chamber of putting into mesopelagic layer behind the material-storing box mechanism material-storing box of plastic film through put into coating machine after compound folding of heat sealability excellence of PUR bonding agent again, pull out fixed length film and mesopelagic layer and pull out with outer membrane after flush flushly through the hollow passageway of storing hollow shaft, three layers of tubular diaphragm are led the multiple film sizing mechanisms of interior coating machine synchronously continuously by sizing, heating, the compound bidirectional stretch tubular composite plastic film sheet that contains at least two layers of broadwise simple tension film or unstretched film of one that is pressurizes.
When making outer membrane, after the cylindrical plastic film sheet is carried out the warp-wise simple tension, before the cooling and shaping, to carry out pyrocondensation and handle in the above-mentioned method.
When making outer membrane, adjust the blow-up ratio of blown film or broadwise molecular orientation and the tensile strength that the draw ratio on the stretching-machine just can suitably keep diaphragm in the said method.
When making inner layer film, the carry-over pinch rolls on the control blown film stretching-machine and the linear velocity ratio of draw roll make not only simple tension on broadwise of inner layer film, and have kept suitable warp-wise tensile strength in the said method.
Apparatus of the present invention comprise by extruding inflation film manufacturing machine and/or multi-layer co-extruded inflation film manufacturing machine, the roll-type heat stretching machine, the blown film heat stretching machine, interior coating machine is formed, draw roll in the roll-type heat stretching machine is at least two, storing hollow shaft and/or material-storing box mechanism are arranged in the interior coating machine, the multiple film sizing mechanism and the thermal source of sizing tool in having, blown film stretching-machine and multi-layer co-extruded inflation film manufacturing machine link or do not link, the blown film heat stretching machine is to utilize compressed air to feed cylindrical plastic film sheet inner chamber, and control air pressure and temperature make cylindrical plastic film sheet enlarged-diameter and reach broadwise (laterally) stretching requirement.
Above-mentioned thermal source adopts Electric heat oven and/or Circulation and Hot Oil Spray machine.
Have vertical sulculus on the die lip circumference of above-mentioned inflation film manufacturing machine film head so that extrude the skin that makes of cooling with have on the cylindrical plastic film sheet pile anti-skidding with the concavo-convex muscle line of gaining in strength.
Adopt production method of the present invention can produce energy savings, bidirectional stretch intensity height, tear resistance is good, and the scope of application is wide, is easy to reclaim, and is beneficial to the bidirectional stretch tubular compound film sheet peace film compound film sheet of environmental protection.
Description of drawings:
Fig. 1 produces outer device and flow chart with the cylindrical plastic film sheet.
Fig. 2 produces device and the flow chart of internal layer with the cylindrical plastic film sheet.
Fig. 3 produces the device and the flow chart 1 of compound film sheet for the storing hollow shaft of coating machine in using.
Fig. 4 produces the device and the flow chart 2 of compound film sheet for the storing hollow shaft of coating machine in using.
Fig. 5 is an inflation film manufacturing machine film header structure schematic diagram.
Fig. 6 is that the K of Fig. 5 is to view.
Fig. 7 produces the device and the flow chart of compound film sheet for the material-storing box mechanism of coating machine in using.
Fig. 8 produces device and flow chart 1 more than the compound film sheet of one deck broadwise stretching film for the storing hollow shaft of coating machine in using and material-storing box.
Fig. 9 produces device and flow chart 2 more than the compound film sheet of one deck broadwise stretching film for the storing hollow shaft of coating machine in using and material-storing box.
The specific embodiment:
By through, latitude simple tension plastic film compound or by the process units of the compound peaceful film compound film sheet of bidirectional stretch tubular compound film sheet of the higher plastic film of higher plastic film of warp-wise tensile strength and broadwise tensile strength such as Fig. 1～shown in Figure 9 by extrude inflation film manufacturing machine and/or multi-layer co-extruded inflation film manufacturing machine, roll-type heat stretching machine, blown film heat stretching machine, interior coating machine is formed.Outer membrane can be the inflation film manufacturing machine that 1 extruder is formed, it also can be the multi-layer co-extruded inflation film manufacturing machine that many extruders are formed, it among the embodiment the multi-layer co-extruded inflation film manufacturing machine 15 of two extruders co-extrusion, 2 layers of co-extrusion film of inflation film manufacturing machine head 2 has two runners, two kinds of raw materials become a runner 54 at the die lip 52 that goes out die head with core rod 51 places, also are that two-layer raw material is to extrude.Have anti-skidding and concavo-convex muscle line that gain in strength in order to make outer membrane finally make the compound film sheet rear surface, on the circumference of horizontal lip 52, have longitudinal fluting, when plastics are extruded as the tubular diaphragm by runner, left concavo-convex lengthways of rod on the excircle of this tubular diaphragm, stayed the outer surface of tubular compound film sheet through the stretching of operation later, after compound and play effect anti-skidding and that gain in strength.
For making the rolling of tubular film smooth, can adopt the die head rotation, or go up the rotation of traction pressure roller, and the frame rotation, present embodiment is the frame rotation, and rotary frame 55 is arranged, multi-layer co-extruded inflation film manufacturing machine is furnished with cooling vane 3, traction pressure roller 56 and rolling frame 5.
Roll-type heat stretching machine 6 has 5 draw rolls, every roller is driven by one group of motor and decelerator, there are two passive rubber rolls of heatproof to make pressure roller 8,3 thermal contraction treatment tubes 9 are arranged, these 3 rollers are driven by one group of motor and decelerator, 3 rollers have 3 chill rolls 10 by chain or gear driven, logical cooling water in the chill roll; The roll-type heat stretching machine is by the casing sealing and be divided into three sections temperature controls separately.It is respectively that 11 and 12 thermals source adopt electric heater and circulating fan to form that draw roll and thermal contraction roller each have thermal source.Chill roll also provides cooling wind regime 13 by blower fan except that logical cooling water, the rolling frame 14 of rubber roll is arranged.
Multi-layer co-extruded inflation film manufacturing machine can be a upward type, also can be bottom blowing type, and present embodiment is the multi-layer co-extruded inflation film manufacturing machine 16 of bottom blowing type.This unit has 2 extruders 17, and an inflation film manufacturing machine die head 18 is arranged, and this die head has cooling vane 19 for rotation film head, and overflow-type cooling water ring 20 has carry-over pinch rolls 23, and these all install on frame.Blown film heat stretching machine 24 can be to draw stretching from bottom to top also can draw stretching from top to bottom, and present embodiment is to draw stretching from top to bottom.This unit has a pair of carry-over pinch rolls 23 and is furnished with motor and decelerator separately.Ring heater 25 is arranged.The ring heater diameter is designed to 4 to 9 times of tubular unstretching film sheet diameter according to the blow-up ratio of broadwise hot-stretch.Different blow-up ratio (broadwise) draw ratio should be joined different ring heaters.This unit has two pairs of draw rolls 28 to join one group of motor and decelerator, 5 thermal contraction rollers 29 are arranged and be furnished with a heatproof glue laminated roller, with one group of motor and decelerator, thermal source is as roll-type heat stretching machine 12, chill roll 30 and a glue laminated roller that 3 Gen Neitong cooling waters are arranged, cool off wind regime 13, the rolling frame 31 of 1 rubber roll frictional drive is arranged.Interior coating machine 32 is furnished with 58 1 of unwinding racks of outer membrane, it can push away out the position after having unreeled outer membrane, be furnished with joining to dissect with expanding unit and having 1 cover to send (moving back) film mechanism 59 and storing hollow shaft 60 of rubber roll transmission that inner layer film uses with unwinding rack 67 and compound film sheet finished product and supporting, the storing hollow shaft has hollow passageway 61.There is supporting 62 to be connected with frame 63.Send (moving back) film mechanism to form by running roller 64, motor and decelerator 65 and dolly clamping plate 66.Motor and decelerator drive roller wheel, the film head can be served the storing hollow shaft, the dolly clamping plate also have motor and decelerator under the electrical equipment programme-control, the diaphragm of serving the storing hollow shaft is clamped pusher toward supporting 62 1 ends, make whole diaphragms put hollow shaft and compress, if the counter-rotating of motor and decelerator, the diaphragm that then will overlap time hollow shaft is pulled out from hollow shaft and is backed off, and corresponding dolly clamping plate are also clamped the action that diaphragm pushes away reciprocal supporting 62 other ends diaphragm is backed off.
Interior coating machine also is furnished with a cover material-storing box mechanism 44, and material-storing box mechanism is by 1 material-storing box 45, and several plastics are slided roller 46, and several to metal support roller 47 compositions, they are assembled in above the frame 48.Material-storing box is that plastics or lightweight aluminium are made.Interior coating machine also is furnished with sizing mechanism 41 in the multiple film of a cover.Sizing mechanism has two assembly that the traction pressure roller 33,35 of motor and deceleration is arranged in the composite membrane, sizing tool bogie wheel 36 in 4 pairs is arranged, sizing tool supporter backing roll 38 in 4 pairs is arranged, the interior sizing tool 37 that the light-weight metal making of a tubular is arranged, an openable baking oven 39 is arranged, the thermal source 40 of electric heater and circulation thermal source is arranged, and they all install on frame 34.
When coating machine is produced the cylindrical plastic film sheet in using, if be compound inner layer film and outer membrane, only use the storing hollow shaft and send (moving back) film mechanism, also can only use material-storing box mechanism, if produce compound film sheet more than one deck broadwise simple tension film, when promptly being many one decks mesopelagic layer, just can using the storing hollow shaft simultaneously and send (moving back) film mechanism and material-storing box mechanism.
Fig. 1 is the outer figure that produces with the cylindrical plastic film sheet.It is two extruders 1 coextrusion of usefulness high density polyethylene (HDPE) and linear polyethylene by multi-layer co-extruded inflation film manufacturing machine 15, be combined into a skim by inflation film manufacturing machine film head 2 two membranes, through as the die lip 52 and the 54 formation tubular diaphragms 4 of the runner between the core rod 51 of Fig. 5, inflation film manufacturing machine die head shown in Figure 6.Make tubular matrix 4 peripheries be covered with vertical concavo-convex muscle line because of on die lip 52, having vertical sulculus 53.This tubular diaphragm 4 is air-cooled through cooling vane 3, the air of filling certain pressure for tubular diaphragm inner chamber makes blow-up ratio make it the tubular diaphragm that cooling and shaping is a diameter between 1 to 4 multiple value in addition, and the traction of a pair of traction pressure roller 8 of process and folding are put down and be drawn to rolling on the winder 5 (if the multilayer inflation film manufacturing machine is not online with the roll-type heat stretching machine).
The folding flat diaphragm is drawn roll-type heat stretching machine 6 among the embodiment, under heating state, stretched by 5 draw rolls 7, pressed by two pressure rollers 8 during stretching, linear velocity is poorer than 4 to 9 times speed is arranged between these 5 rollers, also promptly roll over flat cylindrical plastic film sheet here along be stretched 4 to 9 times length of difference warp-wise (vertically), be that roller rest formula heat stretching machine thermal source provides thermal source during stretching, the thermal source here is an electric heater heating, is blown into by the air-heater circulation.Diaphragm after being stretched leads into thermal contraction treatment tube 9, the linear velocity of this roller is a little less than the 3-10% of preceding draw roll linear velocity, handling thermal source through overheat contraction also is the heating of air-heater, shrinking typing back (maybe needn't handle through pyrocondensation) leads into chill roll 10 cooling and shapings, logical circulating water in the chill roll has cooling blower 13 to send the cold wind cooling simultaneously.Diaphragm is finished stretching, and it is standby to be pulled into winder 14 rollings behind the pyrocondensation cooling and shaping.Sequence number 25,26,27 is respectively heater, stretching film, stretching film inner chamber among Fig. 1.
Diaphragm tensile strength behind the drawn improves 5 to 15 times than the diaphragm before stretching, and is the stretching resistance that produces because the back macromolecule capacity direction that stretches is arranged.If not only make warp-wise (vertically) that very high stretching resistance is arranged, simultaneously also need on broadwise (laterally), certain stretching resistance be arranged also, can on 4 to 9 times of Lapie, get the decimal stretching.Can also when the coextrusion blown film, the blow-up ratio of blown film be got big value for 1 to 4 times.
Fig. 2 produces the produce schematic diagram of internal layer with film cylindrical plastic film sheet.Be with two extruders 17 coextrusion of high density polyethylene (HDPE) or linear polyethylene and ethene-acetate ethylene copolymer by multi-layer co-extruded inflation film manufacturing machine 16, cross the circular passage of inflation film manufacturing machine die head 18 and extrude cylindrical plastic film sheet 21, this diaphragm ethene-acetate ethylene copolymer is at skin, pass through the air-cooled of cooling vane 19, the water-cooled blooming inner chamber of process overflow or cooling water ring 20 is filled with the certain pressure air and forms stable cylindrical plastic film sheet again.What the blowfilm shaping was here taked is bottom blowing type.The cylindrical plastic film sheet is through flat can the leading into winder 22 rollings (if not linking with blown film heat stretching machine 24) of folding of carry-over pinch rolls 23.Present embodiment is the carry-over pinch rolls 23 that directly lead the blown film heat stretching machine, the cylindrical plastic film sheet is gone into the diaphragm inner chamber through carry-over pinch rolls 57 backs with hollow needle and is fed compressed air fast, make the flat film of folding recover tubular, penetrated heating by the ceramic electric heater width of cloth simultaneously and reach draft temperature, generally in the time of 90 ℃ to 115 ℃, the tubular diaphragm is 4 to 9 times of original diameter by the compressed air inflation of inner chamber under heating state, also is that film is stretched 34 to 9 times by broadwise (laterally).In order to make film big as far as possible tensile strength be arranged, generally between carry-over pinch rolls 23 and draw roll 28, keep same linear velocity as far as possible, i.e. stretching film not on warp-wise (vertically) in broadwise.If need diaphragm that higher stretching resistance is not only arranged on broadwise, also need be through upwards keeping certain stretching resistance, we will get the small value tubular diaphragm blow-up ratio for 4 to 9 times, and draw roll 28 can have linear speed faster than carry-over pinch rolls 23 simultaneously, and promptly warp-wise (vertically) also gives certain stretching simultaneously.The diaphragm that stretches through broadwise leads and entangles the back of contracting (also can pyrocondensation handle) into thermal contraction roller 29 heat and lead into chill roll 30 typing that is cooled, and is standby by 31 rollings of rolling frame at last.
Fig. 3, Fig. 4 produce the composite membrane schematic diagram with the storing hollow shaft of interior coating machine.The unwinding rack 58 of coating machine 32 in skin put with film 4 send (moving back) film mechanism 59 that skin is all put on the storing hollow shaft 60 with film 4 by interior coating machine 32.Send (moving back) film mechanism by sending (moving back) to return film mechanism running roller 64, send (moving back) film mechanism's motor and decelerator 65, send (moving back) film mechanism dolly clamping plate 66 to form.Motor and decelerator 65, drive roller wheel 64 make outer membrane be served storing hollow shaft 60 during film feeding.At this moment unwinding rack 58 is pushed open, vacated this station, the film of serving is sent (moving back) mechanism dolly clamping plate to clamp and is sent into hollow shaft 60 tail ends.After skin is all served the storing hollow shaft with film, be placed on internal layer on the unwinding rack 67 that is positioned at the coating machine other end with film 21, inner layer film is passed the hollow passageway 61 of storing hollow shaft 60, send the motor counter-rotating of (moving back) film mechanism this moment, film feeding mechanism becomes and moves back film mechanism, the skin that puts the storing hollow shaft is resigned from office continuously with film 4, at this moment inner layer film 21 is at the internal layer of outer membrane, two membranes is led into multiple film sizing mechanism 41 by the traction pressure roller 33 of interior coating machine 32 synchronously continuously, two membranes puts the interior sizing tool 37 of multiple film sizing mechanism, through the electric heater of baking oven 39 the insides and the heating of circulating air 40, make the two membranes thermal contraction encase interior sizing tool 37, this moment internal layer with the ethene-acetate ethylene copolymer of film 21 coextrusion on skin because of heating be melted in again on the sizing tool and then effect that pass through the traction pressure roller 35 of interior coating machine bonding with film 4 with skin make the bonding more firm bidirectional stretch tubular compound film sheet 43 that becomes of two membranes, lead then into rolling frame 42 by rolling.
If need flat film compound film sheet, carry out out with the rolling of a rolling frame by centre joint agent by the design fabric width before entering the rolling frame after finishing when the tubular compound film sheet is compound.Also can become two width of cloth by the rolling of two rolling framves by the limit.
Fig. 7 is for producing the device and the schematic flow sheet of compound film sheet with the material-storing box mechanism of interior coating machine.In the material-storing box 45 with inner layer film 21 material-storing box mechanism 44 of coating machine 32 in fold back stacks, skin is placed on unwinding rack 30 with film 4, draws a fixed length, material-storing box 45 is put into the outer membrane inner chamber.
The inner layer film 21 of pulling out stored collapsed in the box is flush with outer membrane 4, at this moment, inner layer film is within outer membrane, material-storing box 45 has sliding roller 46 by supporting 47 supportings and the control of material-storing box mechanism, outer membrane 4 is passed through between the sliding roller 46 of material-storing box and backing roll 47 continuously smoothly, the complete synchronously continuous multiple film sizing mechanism 41 that is pulled into interior coating machine of inside and outside tunic, as above-mentioned sizing heating in multiple film sizing mechanism, contraction moulding, compound is tubular compound film sheet 43.If need flat film compound film sheet, enter rolling after finishing and to cut open by the centre joint by the design fabric width before adding and launch also can become two width of cloth by the rolling of two rolling framves by the limit with the rolling of a rolling frame when the tubular compound film sheet is compound.
Fig. 8, Fig. 9 produce compound film sheet schematic diagram more than one deck broadwise (laterally) simple tension film with the storing hollow shaft of interior multiple film and material-storing box mechanism.Skin is put with film 4 on the unwinding rack 58 of interior coating machine, sent (moving back) film mechanism 59 that this volume film 4 is served on the storing hollow shaft 60 entirely by interior coating machine.Inner layer film 21 is placed on the unwinding rack 67 of interior coating machine material-storing box mechanism 44 1 ends, the film of the fixed length of backing off, here work done in the manner of a certain author is the middle level film, the film 49 of intending the class formula inner layer film 21 of how compound one deck is come and gone the folding material-storing box 45 of putting into, again box is put into middle level film inner chamber, it is flush to pull out long fixed a diaphragm and a mesopelagic layer, pulls out with outer membrane flush through the hollow passageway 61 of storing hollow shaft then.Material-storing box 45 has pulley 46 by backing roll 47 controls and the supporting of material-storing box mechanism, the tubular mesopelagic layer is passed through between the backing roll of the pulley of material-storing box and material-storing box mechanism continuously smoothly, and outer membrane has backing off from the storing hollow shaft that the effect of moving back film mechanism 59 can be continuous smoothly.Three layers of tubular diaphragm synchronous continuous quilts multiple film sizing mechanism 41 of leading interior coating machine fully become bidirectional stretch cylindrical plastic film sheet more than one deck broadwise (laterally) simple tension film as said method and by sizing, heating, pressurization are compound for one.
If need flat film compound film sheet, can cut open by the centre joint by the design fabric width before entering the rolling frame after finishing and launch when the tubular compound film sheet is compound with the rolling of a rolling frame, also can cut edge becomes two width of cloth by the rolling of two rolling framves.
Claims (5)
1, the production method of bidirectional stretch tubular compound film sheet peace film compound film sheet is characterized in that this method comprises:
1), extrude the cylindrical plastic film sheet that cooling makes the single or multiple lift material with single or multiple lift coextrusion inflation film manufacturing machine, the flat cylindrical plastic film sheet of draw ratio doubling on demand carries out the warp-wise simple tension on the roll-type heat stretching machine, behind the cooling and shaping with its rolling as outer membrane;
2), extrude the cylindrical plastic film sheet that makes band PUR bonding layer with multi-layer co-extruded inflation film manufacturing machine, on the blown film heat stretching machine cylindrical plastic film sheet reheated reach the draft temperature condition after, compressed air is fed the inner chamber of cylindrical plastic film sheet, control air pressure and temperature make its enlarged-diameter reach the requirement of broadwise draw ratio, and the cooling folding is flat then makes inner layer film with its rolling;
3), with 1) the obtained outer membrane of step and 2) the obtained inner layer film of step is compound through interior coating machine, compound tense, be on the storing hollow shaft of coating machine in outer membrane is enclosed within, in inner layer film is placed on another unwinding rack of coating machine and make it to place the hollow passageway that inner layer film one end passes the storing hollow shaft in the outer membrane, inner layer film and outer membrane are led on the interior multiple film sizing mechanism synchronously, heat through circulating air, thermosol adhesive layer on the inner layer film is reheated fusion and outer membrane and inner layer film are bonded together, effect through at least one pair of pressure roller, just be combined into behind the cooling and shaping by warp, latitude simple tension plastic film compound or be higher than the plastic film of broadwise tensile strength and the compound bidirectional stretch tubular compound film sheet of plastic film that broadwise tensile strength is higher than warp-wise tensile strength by warp-wise tensile strength, or outer membrane is placed on the unwinding rack of interior coating machine, and the fixed length outer membrane of backing off, put into the outer membrane inner chamber after inner layer film being put into the material-storing box of coating machine after back and forth folding, the inner layer film and the outer membrane of pulling out fixed length are flush, in, the multiple film sizing mechanism that is pulled into interior coating machine that outer membrane is synchronously continuous, heat through circulating air, thermosol adhesive layer on the inner layer film is reheated fusion and outer membrane and inner layer film are bonded together, through the effect of at least one pair of pressure roller, just be combined into behind the cooling and shaping by warp, latitude simple tension plastic film compound or be higher than the plastic film of broadwise tensile strength and the compound bidirectional stretch tubular compound film sheet of plastic film that broadwise tensile strength is higher than warp-wise tensile strength by warp-wise tensile strength;
4), bidirectional stretch tubular compound film sheet is cut open by the centre joint or cut open and just make the flat film compound film sheet of bidirectional stretch from both sides.
2, the production method of bidirectional stretch tubular compound film sheet peace film compound film sheet according to claim 1, it is characterized in that with outer membrane and inner layer film compound tense, be on the storing hollow shaft of coating machine in outer membrane is placed on, in inner layer film is placed on as mesopelagic layer on the unwinding rack of material-storing box mechanism one end of coating machine, the fixed length mesopelagic layer of backing off, the unstretched skin of the inner layer film of another broadwise simple tension or one deck has the inner chamber of putting into mesopelagic layer behind the material-storing box of the material-storing box mechanism of plastic film through put into coating machine after compound folding of PUR bonding agent again, pull out fixed length film and mesopelagic layer and pull out with outer membrane after flush flushly through the hollow passageway of storing hollow shaft, three layers of tubular diaphragm are led the multiple film sizing mechanisms of interior coating machine synchronously continuously by sizing, heating, pressurize and compoundly contain at least two layers of broadwise simple tension film or unstretched bidirectional stretch tubular composite plastic film sheet for one.
3, the production method of bidirectional stretch tubular compound film sheet peace film compound film sheet according to claim 1 and 2 is characterized in that when making outer membrane, will carry out pyrocondensation and handle after the cylindrical plastic film sheet is carried out the warp-wise simple tension, before the cooling and shaping.
4, the production method of bidirectional stretch tubular compound film sheet peace film compound film sheet according to claim 1 and 2, it is characterized in that when making outer membrane, adjusting the blow-up ratio of blown film or broadwise molecular orientation and the tensile strength that the draw ratio on the stretching-machine just can suitably keep diaphragm.
5, the production method of bidirectional stretch tubular compound film sheet peace film compound film sheet according to claim 1 and 2, it is characterized in that when making inner layer film, the carry-over pinch rolls on the control blown film stretching-machine and the linear velocity ratio of draw roll make not only simple tension on broadwise of inner layer film, and have kept suitable warp-wise tensile strength.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001131591A CN1160185C (en) | 2000-09-05 | 2000-09-05 | Method and implement for producing bidirectional stretching-resistant tube-shape compound diaphragm and plain compound liaphragm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001131591A CN1160185C (en) | 2000-09-05 | 2000-09-05 | Method and implement for producing bidirectional stretching-resistant tube-shape compound diaphragm and plain compound liaphragm |
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| CN1285265A CN1285265A (en) | 2001-02-28 |
| CN1160185C true CN1160185C (en) | 2004-08-04 |
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| DK1488910T3 (en) * | 2003-06-17 | 2007-05-29 | Reifenhaeuser Masch | Apparatus for producing a thermoplastic plastic film |
| CN1311960C (en) * | 2004-02-26 | 2007-04-25 | 甘国工 | Method and device of continuous producing orthogonal complex bidirection antistretching cylindrical film having heat-seal lager |
| CN100355554C (en) * | 2004-10-13 | 2007-12-19 | 甘国工 | Continuous method for fabricating orthogonal composite bidirectional tensile cylindrical shaped membrane with heat seal layer, and equipment |
| CN100390026C (en) * | 2004-10-15 | 2008-05-28 | 甘国工 | Packaging bag combined bi-directional drawn cylindrical shaped membrane with not drawn cylindrical shaped membrane, and production method |
| CN100358614C (en) * | 2005-01-10 | 2008-01-02 | 宁波大学 | Manufacture process and apparatus for PTFE supported composite filtering film |
| CN101220181B (en) * | 2007-12-10 | 2010-08-11 | 福州永鑫塑料包装用品有限公司 | Double-layer composite production method for plastic film sheet material on blowfilm machine and equipment thereof |
| CN102260758A (en) * | 2010-05-27 | 2011-11-30 | 江苏国信合成革有限公司 | Surface treatment machine |
| CN102744884A (en) * | 2012-06-19 | 2012-10-24 | 广州市合诚化学有限公司 | Stretching and setting apparatus and stretching and setting method for ventilating waterproofing membrane |
| CN104002401B (en) * | 2014-06-04 | 2016-03-23 | 张家港先锋自动化机械设备有限公司 | A kind of glove knitting machine |
| CN104002400B (en) * | 2014-06-04 | 2016-04-27 | 张家港先锋自动化机械设备股份有限公司 | Discharging device in glove knitting machine |
| CN104828305B (en) * | 2015-04-25 | 2017-04-12 | 汕头市明星机械实业有限公司 | Film sleeving equipment for sleeving inner film cylinder by outer film cylinder |
| CN113665210A (en) * | 2021-08-30 | 2021-11-19 | 广东丹青印务有限公司 | Degradable high-barrier food packaging bag, preparation device and method |
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2000
- 2000-09-05 CN CNB001131591A patent/CN1160185C/en not_active Expired - Fee Related
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