TW200927001A - Filter tow bale, method and device for producing a filter tow bale and filter tow strips - Google Patents

Abstract

The invention relates to a filter tow bale (2) from compressed filter tow, which is characterized in that the filter tow bale (2) comprises at least two separate filter tow strips (1, 1') that are arranged together in layers.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter filament group having the characteristics of φ ▲ main _ L.,. ' 曱 专利 patent scope item 1 and a device for manufacturing a nozzle group And methods, as well as - a filter ribbon 0, for example, the patent applicant has the prior art of manufacturing and selling the previously mentioned filter filaments

此种 This filter is made from the production of a roll or a non-final cigarette to the filter, which is made of a crimped cellulose acetate tape called the end of the pout. The making of the ferry wire is secret. The cellulose-spun yarn is placed in a top forging chamber, and the curl pattern of the embossed soil from the p1 and p is fixed when the drying is completed. After the filter wire reaches a final humidity of a constant temperature, the sputum wire is placed in a can of a few meters high according to the regular pattern. Then use the ball machine to compress the loose silk layer, and read it! % is the filter filament and is finally packaged, thus completing the preparation for further processing into the filter.

Paul Rustemeyer, Macromolecular 208 (2004), pp. 267-291, "CA Filter Tow fuer Cigamte Filter" has a detailed description of the process of making the filter wire. The filter wire is processed into a filter rod on a filter rod making machine. The filter wire is first placed in a pretreatment chamber on the machine to expand as much as possible to achieve its maximum aeration capacity, and then compressed into The future of the cigarette filter: type, and finally rolled up with paper. The process of expanding the filter wire is to use the expansion nozzle of the air pressure driven by the father's 3 200927001 to pull the filter wire apart, and then thin the system with a threaded surface or a spiral surface. The mouth is placed in a triacetin mouth shower to dissolve and become viscous. It is then concentrated into a filter ribbon in the forming chamber of the filter rod maker and compressed into a cross section of a future filter rod. At this point the filament will stick and form a spatial network structure of two dimensions, which can be used for one-step processing and has the filter hardness required by the consumer. In order to increase the speed of production, the method proposed by the patent registrant, German Patent No. 43 2, 317, is to use a double filter rod making machine to make a filter rod, which can process two filter ribbons at the same time. In order to obtain a stable quality filter rod, one side has similar characteristics, and on the other hand, the filter filaments are also allowed to flow out from the double filter rod making machine and uniformly flow into the double filter rod making machine. Praise Content ❹ The purpose of the present invention is to extract the filter filaments that can make the filter ribbon flow out as evenly as possible, and H 4 ® (4) is used in the double filter. Further devices and methods, as well as a filter ribbon for the filter filaments. Right, 'the filter group with the characteristics of item 1 of the patent scope, the device having the characteristics of item 10 to the mouth of the patent application, the group 4 with the characteristics of the 18th item, the method having the characteristics of the patent application scope, The characteristics of the mouth ribbon can be achieved by the second application of the scope of the 21st. The advantage of the present invention is that the county M M, ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The increase causes the density variation of the filter to be minimized. In addition, the filter wire can be manufactured and removed at the same time. Therefore, it is possible to manufacture a filter wire with similar or identical characteristics. This is improved for the inflow of double filter rods. The uniformity of the two nozzles of the machine is very helpful. In addition, since the two poop wires have the same outflow length, it helps to reduce the generation of waste. If the length of the filter wire is different, for example due to filtration When the mouth yarn is discharged from two different nozzles and thus has different lengths, it may cause an increase in waste and a long machine downtime due to the process of penetrating the new nozzle wire. Further, the filter of the present invention The filaments can also be used to place different filter filaments into the filter filaments, so that the filter rod maker can produce a different nozzle with two different nozzle wires. ^ According to an advantageous embodiment , at least two According to the mouth ribbon, this disorderly accumulation is accumulated in the feeding track of the scorpion, especially in the ore tooth shape where the parallel track or bend is acute. The basic idea of this embodiment is to The orientation of the pouting ribbon is set in the filter filament group, so that the two filter ribbons of the court form a model of the obedience. For example, the orbital model can be formed by a parallel or obscure orbital for the acute angle. Strips = strips are all piled up along the track or in a chaotic disorder in the track - this: In the "property" embodiment, both mouth ribbons have - one track; in the filter filament The preferred direction of the extension or the dominant direction. This constitutes the lateral boundary of the imagination, that is to say, the messy and stacked filter ribbon is located in the track. The advantage of the shape of the pouting ribbon is the two orbital modes. The placement layer is superior to the flow characteristics of the filter wire 5 200927001 through the filter filament group. The two filter wires can be I, 士,上上 ^ m.

If the interval is 0cm, the filter ribbon (or filter ribbon is set)

Half the width of the mouth. ^带) may be greater than 0' but may not be ultra-filtered. According to a particularly advantageous embodiment, at least two filter ribbons have at least partial paragraphs overlapping each other and having an overlap region "the overlap ratio of the overlap region is between 1" 〇% to greater than 〇%. The overlap region can also have sub-regions. If the overlap ratio is 1%, the filter ribbons (or the tracks in which the filter ribbons are disposed) completely overlap each other. The filter ribbon can be placed in the filter filaments in a staggered manner. In this case, the filter ribbon located below in an obedience will have a reverse turning point at the end of the filter filament group. This filter ribbon originally located below is in the return journey after passing the reverse turning point. The inside of the road will become the top of the raft. This method produces an automatic adjustment to prevent the filter ribbon from coming in advance, because the lower filter ribbon will have a greater tension when the lower filter ribbon exceeds the upper filter ribbon. Since the filter ribbons are stacked up and down, the filter ribbon below will move with the filter ribbon above. After passing the reverse turning point, the filter ribbon that was originally below in the return stroke will become above, so that the filter ribbon located below will have a greater tension and move with the upper nipple. Therefore, when the two filter ribbons flow out from the filter filaments, they will automatically become 0. 200927001 Other advantageous filter screens of the present invention belong to the patent application garden. The embodiment is described in the inflowing device with the cans for manufacturing the filter wire proposed by the present invention. The inflowing device has a function of unloading or pre-treating at least two separate fashion ribbons, which can be passed through a single... It is also a method of smashing the singularity of the singularity of the singularity of the singularity of the singularity of the singularity of the singularity The method comprises the steps of simultaneously manufacturing or pretreating the filter ribbons which are separated from each other, and compressing the filter filaments in the cans. θ, and the device of the formula and the method of the invention can be used The filter filaments of the present invention are known in a very simple manner. The apparatus of the present invention and various advantageous embodiments of the present invention are described in the scope of the appended claims. The present invention also provides a very suitable application of the present invention. a filter ribbon composed of a filter filament and a crimped filament having at least two sub-mouth ribbons, and the sub-mouth ribbons at least partially overlap each other (preferably all overlap) The overlap zone is connected via a surface force. Since the two sub-filter ribbons that are considered to be separated in other sections are slightly connected in the overlap zone, there is a positive influence on the outflow characteristics of the spout ribbon flowing out of the filter tuft. Various advantageous embodiments of the invention are described in the scope of the appended claims. The following is a description of the present invention in conjunction with the embodiments and the drawings. The first embodiment shows two filter ribbons (1, n different combinations of eight to E, the combination of the two filter ribbons (U) is formed before or during the inflow tank. Then the nozzle wire in the can is pressed into a double filter wire The filter ribbons that are combined together in the Figure 1 are located in the inflow device (not in the figure), especially between the conveyor rollers of the flow device. It can be clearly seen from the figure The relationship between the two pout ribbons (1, Γ). Two pout ribbons (1, the configuration in the inflow device determines the two ferry ribbons (1,1,) in the filter filaments (7) Configuration method. Also It is said that the filter ribbons (1, 1,), which are arranged in parallel in the inflow device, are also combined, and are also arranged in parallel or in parallel tracks in the filter filaments (2). 1,1,), that is, the combination Β, in the filter filament group φ is also overlapped up or down or in the upper and lower overlapping track. In the jar, the filter, the mouth ribbon is removed and the filter ribbon is pressed into a filter filament It is carried out in a track mode. The track is set in a prescribed model which is formed by the arrangement of the filter and mouth ribbon (1, 丨') in the inflow device and the guidance of the filter ribbon (1, 1'). The filter ribbons (1, Γ) are stacked in a track in a chaotic and disorderly manner. The trajectories of the tracks are in accordance with a prescribed model. For example, the tracks are parallel, completely overlapping, or partially overlapping. The following will be based on Figure 1. The combination of the Α to Ε further describes the configuration of the filter ribbon (i, 1,) or its associated track. 8 200927001

• According to Figure 1, the fine person A - recognition, D A, two filter ribbons, 一定 a certain distance. Two body mother _ α 1 J after this iw • ” 'Consider mouth, 糸 belt (1 ' 1 ') are parallel to each other, _ is said filter ribbon 0, 丨, 仃 configuration, also - separated from each other The distance is basically solid. The distance between the two filter ribbons (1, not fixed, ,, ni, ni) can be 0cm, which is the two filters at this time. 1,) Doors 1C., (1' 1,) are in direct contact. The distance between the two filter ribbons (丄, i) is φ width, also..." Double filter filaments (2) - half, 疋° At 4 o'clock every double filter filament (7) - strip filter ribbon (1, !b +3⁄4 degree configuration ❹ θ ^ filter ribbon (1,1,) can also be separated from each other by 0cm 5 — Any value between the half widths, in particular, between 'Cm and 20cm, between 5cm and 2〇Cm, or between 5 and 1 coffee. According to the combination B, two grin ribbons〇 , the entire length of r) overlaps each other. In this way, a loose connection is formed between the entire width of the two poop ribbons ο, η, so that the two stunned 虑(1 '1') can be very uniform and synchronized from the double wide of the present invention. I wish the mouth silk group (2) out. According to the combination ❹ C, the two filter ribbons (i, 1, ) can be partially overlapped with each other, that is, the overlap ratio of the two filter ribbons (1, 1,) and the cattle can be between 0%. (combination A) and 100% (combination B). According to this issue, Ding A &

The ribbon (1 '1') is still considered to be a separate filter ribbon (1, 1,) after being pressed to form the I wind t microjoin. According to an advantageous combination D,, & two filter ribbons (1, 1,) completely overlap each other and are bent at the position of the length of the smoldering, so that the combined filter ribbon has a total of 4 layers of filters wire. After the group of people are flooded | ^^ #, and the combined filter ribbon flows in, the double filter filaments of the present invention (2) are not only in the two ferry wires 9 200927001 • belt (1 A loose connection is formed between the two, and a loose connection is also formed between the two half lengths of the first filter ribbon (1). In addition, the combination of bending the filter ribbon can also make the filter ribbon (1, 1,) having a larger width into a filter ribbon having a narrower width and easier handling. The combination ε also has an advantage in that the two filter ribbons (1, 丨,) are bent and joined together, that is, the first filter ribbon (1) and the second grin ribbon ^ There is a coincident overlap ratio, and the first passer ribbon (1) is not heavier (four) and the part is located above the overlap of the second filter ribbon 〇,). Similarly, the second grin ribbon (1,) is located in the overlap of the e m illusion and also :: the fold, so this part is located in the first bead ribbon (1) that is bent. According to the combination of E's two pouting ribbons, the connection between the two faces is large, so the two filter ribbons are easy to lift the connection, so the plant is... quite close but (1)1,)) can be very Uniform and synchronized from the hair: the mouth ribbon flows out. Double filter filaments of umbrellas and moons (2) ❹ Figures 2 and 3 show an embodiment of the present invention, respectively, in which the nets of two pouts ~ filaments (2) should be mouth ribbons (1, !' ) is configured in the same way as A. Group with combination diagram /1 减 丝 · · · · · 《 · · · · 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜 卜The half-width of the silk group, the third figure is shorter than the mouth of the mouth, and the two of the two clear mouth ribbons in the 'mouth' (2) are just equal to the gap between the η Two:: mouth In addition, Figure 2 and Figure 3 + width. Outlet (3), section - filter ribbon (1) flow with guide ring (4) and first filter ribbon (1,) via 200927001 • The guide ring flows out from the filter filament group (2) and flows into a 髻, 唐趣 a _ ^ . double, the nozzle rod making machine (not in the figure). Two filter ribbons (], 1β / The tongue is broken # @ ρ疋 is set in a zigzag shape on a plane of the double filter ', the scorpion (2), • a _ and the interval between the two filter ribbons (1, 1,) is fixed The difference between the embodiment of Fig. 3 and the embodiment of Fig. 2 is that the two filter ribbons (7) are half of the mouth... (1 each "to the double filter is enough to consider the mouth", 糸Belt (1,1) When flowing into the double-mouthed yarn group (2), the first filter ribbon (1) starts to flow into the parallel orbit at the center of the double-nosed silk group (2) with a ❹=fold shape toward the outer edge. The two filter ribbons 0,) are from the other outer edge and parallel to the first filter ribbon (1) in a zigzag shape and flow in the central direction of the double nozzle core (7). The distances spaced apart from each other are equal to half the width of the filter tuft. Since the two poop ribbons (1, in parallel with each other, their respective flattened tracks are also spaced apart from each other by a distance equal to half the width of the pliers.

The filter filaments (2) consisting of dense filter filaments usually contain at least two knife-free filter ribbons (1 'i ')' and the mouth-to-mouth ribbons (1, i ') are layered and most It is good to set it on the same layer. A filter filament that has just two filter strips is also called a double filter filament. It is common to arrange the filter ribbons together (especially, 疋 pairs) in one layer and together form a face. The area that is swept by the filter wire or its associated inflow in a class L ring is considered to be - face. Due to the accumulation of the filter ribbon, there may be a = in this plane.卩% is full of overlapping paragraphs of the filter thread, but these paragraphs are also located on the side that flows into the loop. The sputum and the mouth are composed of a number of overlapping filter layers or faces. These 11 200927001 ❹ layers or faces are pressed by two pout ribbons unloaded in the can. Many layers of filter in the mouth of the mouth are connected, and in the ideal case, "each layer of the mouth of the mouth is connected. The mouth ribbon is configured according to a specified model. 'And the model can be changed according to the requirements of the manufacturing process. The model is formed by the obedience configuration, the pout ribbon is placed in the can in the track, and (4) is still located in the mouthpiece (7). Chaotic disorder/disordered preferred direction of the pouting ribbon stacked in the track. Figure 4 shows an example of this stacking trajectory. As can be seen from Figure 4, the two filter ribbons (Bu 1,) / solid line) is basically 2 stacks of crepe ribbons (1' n overlap each other does not mean that the two stacking tracks are completely heavy, and Dong and 疋 are unloading two filter ribbons (1, 1, When the male joints as shown in Fig. 4 are formed, the stacking trajectory of the '# map, but the two filter ribbons (there are - common preferred directions. In the example of Fig. 4, formed according to the preferred direction) Inflows are superimposed on each other, mouth (four) doors... + car ugly overlap sheep is (10)%. In the case of a low filter, the weight is 4, for example, the weight 4 is the same: the two tracks in which the stacking track of the strip (four) ribbon (Η) is displaced from each other, so that the stacking track has only one ^ so a messy pile I. Obviously, it is piled up by clutter without early, so some paragraphs will have higher certain paragraphs and there will be lower heavy sheep when stacking tracks or tracks at least, for example, when the overlap rate is Overlapping. ν In most paragraphs there will be approximately - semi-obscenity or accumulation of tracks in the band of the sputum (1, η in the inflow device (especially * 疋 by / caressing the wire. This configuration has been The combination shown in the second example of the configuration is shown in Figure 2. For example, the combination 12 200927001 * c (overlap rate is about 50%) forms the equivalent of the stacking track or track in the pressed filter filament. In addition to the parallel configuration (overlapping or adjoining), another possibility is that the obstruction is a split configuration 'that is, the tracks are separated from each other along their longitudinal length. In addition, the jagged edges may be acute. Shape rail configuration. The scope of the invention is also included Includes filter filaments containing more than two (eg, 3 or 4) separate filter ribbons. Parallelly configured filter ribbons (1, 1) 代表 represents the filter ribbon (1, 1,) is placed in it The inner tracks are directly connected or directly adjacent in the filter filaments in pairs. The first and second filter ribbons (1, 1 ') may be overlapping or directly adjacent, that is, each other Overlap or parallel (a certain distance from each other). Two filter ribbons 〇i. It is best to overlap each other in the filter filaments to form a loose joint. ~ There are many different methods that can be manufactured simultaneously or pretreated. Filter ribbons. One method is to use different independent crimping machines to make different independent filter ribbons. Another method is to use the same crimping machine to make different independent beak ribbons, in which the beak ribbon is in the curling chamber. The distance between each other is so large that the pout ribbon does not form a connection. Alternatively, a coherent pout ribbon can be made and then separated into two single beak ribbons. ::: Separate methods are available. It can be split in the crimper, away from the curling, in the way to the inflow device, or in the filter ribbon of the inflow device. ώ Set of τ will; ~ The separation of the mouth ribbon is not in the filter rod manufacturing machine, so it can avoid the filter rod manufacturing machine is affected by the division of fiber scraps, and the production of 5, chip wood, to extend the filter The maintenance interval of the nozzle manufacturing machine. The separate beak ribbons produced at the same time are unloaded in the cans via a single/double 13 200927001 - (or multiple) inflow device (not shown in the figure). "The device is connected to a stylized controller. The controller that flows into the device can control the two filter ribbons to pick up the cans in the cans... the 'press', the model (for example, on the track that is overlapped) Was removed. In addition to the equipment described above, the manufacture of a nozzle (4) ❹ one (four) wire with a (four) wire device, a roll for winding the wire, a device, and an inflow of the nozzle wire together with the can Device: The detachment can have two rolling bearing rings that are perpendicular to the conveying direction of the nipple ribbon and ί = two distances, and a guide ring that is placed in front of the rolling bearing ring in the conveying direction. Another separation device has at least one separation wedge. In addition to the simultaneous or simultaneous manufacture of separate beak ribbons, the cans can also be separated by two separate (4), two-way (four), for example, independent nozzles. The silk group can be the end (4) ❹ $ 立, 摅 嘴 〜 〜 摅 摅 摅 摅 摅 摅 〜 〜 〜 〜 〜 〜 〜 〜 〜 〜 〜 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅 摅(1, 〗, ) ^ L ^ Method For the number of filter ribbons and ^ π, two or more (for example, 3 侔 条 ” strips of filter ribbon can be manufactured or pretreated. The advantage of the embodiment of the invention ♦ 怿 4 or 4 months is that the filter ribbon is unloaded layer by layer in the jar - and then pressed into a filter filter. At least $ & + figure this off the filter ribbon. The filter, the mouth ribbon, which is arranged layer by layer in the mouth of the mouth, flows into the double-nosed wire in a manner that the mouth is cleaned and the belt is overlapped with each other.

Another advantage of the 200927001 regiment is that loose connections are formed between the filter ribbons via compression (ie, mechanical force). This looseness between the filter ribbons allows the nozzle ribbon to be ejected from the filter filament in a very uniform and synchronized manner to avoid density unevenness in the manufactured nozzle. When the strip is bonded by the sub-filter, the mouth ribbon, and the (iv) mouth ribbon is subjected to a load, the relatively low joint strength is determined by the mechanical pressure exerted on the sub-filter ribbon, especially when the filter filament is pressed.简单 Simple illustration of the drawing Figure 1: Schematic diagram of the cross-section of the two filter ribbons in the inflow _L-. Fig. 2: The filter yarn of the present invention. The sputum ribbon escapes in the advantageous embodiment. Fig. 3: The flow of the filter ribbon of the present invention in the other - according to the mouth ribbon. Figure 4: Top view of the surface of the filter filaments The inflow trajectory of the overlapping filter ribbons. DESCRIPTION OF THE MAIN COMPONENTS 1st - Filter ribbon 1 Second filter ribbon 2 Double filter filament 3 Outflow device / Inflow device 4 Guide ring Advantageous embodiment Figure shows two upper and lower 15

Claims (1)

200927001 - VII. Patent application scope: L A filter filament group (2) consisting of dense filter filaments, characterized in that: the mouth silk group (2) contains at least two separate beak ribbons, especially double crucibles. The mouth silk 'filter ribbon is set in layers, and is preferably placed in the same layer. * For example, the ferry wire group (7) of the patent scope is characterized by: this to: two filter ribbons (1' n chaotically stacked in the track of the filter filaments, especially stacked in parallel tracks Or a zigzag shape with an acute angle at the bend, such as the filter filament group (7) of the patent application scope or item 2, characterized in that:: two filter and mouth ribbons in the mouth silk group ( 1, n is set in the two lines of the road, and at least „ ^ 』 plus Ai Xi Ma, up to a half of the width of the filter filaments. ❹ mouth ❹ 4_ as claimed in the first or the first X 2 2 item filter filaments (2), which feature horses. At least two filter ribbons (1, 1,)) have a plurality of paragraphs overlapping each other and have an overlapping area. The filter filaments (7) of the fourth patent range are characterized by: = overlap ratio is greater than G%, especially between 9〇% and 丄u/o, between 8〇% and 2〇 % .^ is between 70% and 30%, and the attack is between 60% and 40%. 16 200927001 6. If you apply for at least one of items 1 to 5 of the special interest cabinet The filter filament group (2), its characteristic %., 杳^ '. The mouth ribbon (1, 1,) is bent and inserted into each other, and each has a hemming. 〇7·If the patent application group (2) 'Characteristics: At least one of the first to sixth folds overlaps each other. The filter wire of the item 8. As for the patent application group (2), it is characterized by the first to the first The filter yarn of at least one of the six items. The hem is opposite to each other. The hem of the filter wire '1') of at least one of the other will be the other filter group (7)' which is characterized by: _ The mouth ribbon (1,," from the side to the side of the ❹ :=: _ *, - and - J 卞 / /, the interaction of the inflow device, 苴 manufacturing or pre-processing at least two separate (four) two have At the same time, the separated (four) filaments - via the device, the cans ~ layers", - preferably in: 11. Manufacture of at least two filter ribbons as in the first application of the patent scope (1, a multi-spinning machine. The device whose feature is 1 ') contains more than one simultaneous access to the wire machine or a 17 200927001 - .12_ such as applying for patent field 10 or u A device capable of producing at least * 11 items at the same time, characterized by: • A device with a pliers ribbon (1,,,, or a multiple crimper, basin a 1) containing multiple roll filter ribbons ( 1,1,) The tongue a /, 疋 - Taiwan can handle two separate fork-and-roll crimpers. 13. As claimed in the patent scope 帛1〇 item, it is characterized by: it can be made at the same time... at least any item The sling equipment consists of a detachment of the mouthpiece ribbons and two nipple ribbons (1, 1,) set behind the crimper. The separating machine used, and the device for separating the 14m green patent scope item u has at least two perpendicular to the tongue 〃 characteristics: the separating tool - the distance of the bearing 送 wheel is sent and spaced from each other = ===14 The * of the item is characterized by: a guide ring that is placed on the front of the two rolling bearing rings. two? The assembly of at least one of the tenth to twelfth aspects of the patent range is characterized in that the separator has at least one separation switch disposed behind the crimper. 17. The device according to any one of claims 10 to 16, characterized in that: the inflow device (3) has the ability to unload at least two filter ribbons (1 1 ) together into a can. device of. 18 200927001 18. A method for manufacturing filter filaments (2), for the addition of U method for the manufacture of towels, the steps of which are in the double filter, two separate filter ribbons (1, 1,) One layer) is removed, and pressed into a tweezers. The middle layer is layered (preferably at 19. The scope of the application for patent item 18 ❹ ❹ Part of the paragraph overlaps in the jar. It is characterized by the unloading of the mouthpiece ribbon at least in a medium weight manner. 20. A common filter ribbon (1, 8, , / , , , is: mouth ribbon U ' 1,), and the separated movement 77 U, as claimed in Article 18 or Item 19 of the patent application. The action of producing at least two filters + θ is carried out in or after the crimping machine, or by removing the reducing nozzle # ^ in the can, before or during the π r. a filter ribbon consisting of netting and crimped silk, and has a ribbon to the I mouth. These sub-filter ribbons - all good overlap, and in the overlap zone (four) a table: wide overlap or most I 匕 '田彳Solid surface force connection. 19