EP0769582A1 - Warp sizing device - Google Patents

Abstract

Apparatus for vertical sizing of textile weaving warp is based on collecting drum (1), sizing section (2), drying zone (3) and warp beam (4). The sizing section (2) comprises lower warp guide roll (5) also acting as tangential guide roll in relation to the lower sizing roll (8); (b) 2 sizing systems (K) on either side of the warp (12), each with a pair of rolls (7, 8; 9, 10) for applying a uniform film of size to the warp; (c) upper warp guide roll (190 and/or first drying drum (20) also acting as tangential guide roll in relation to the upper sizing roll (9); and (d) a drier (T). In the sizing section, the thickness of the film of size across the width of the warp is ensured by the controllable gap (S) and a constant degree of sizing is obtained by the differential speed between the rollers (8, 9) and the warp. The pairs of rollers (7, 8; 9, 10) are supplied with size from an associated reservoir through a filter, pump, pipe and drainage pipe for recycling excess size to t he reservoir. The individual components of the apparatus are arranged vertically so that warp passing over the sizing rollers tangentially. Also claimed is the size used in this apparatus.

Description

The invention relates to a device for sizing warp chains according to a vertical weaving chain run sizing application principle and by means of easily biodegradable sizing.
The finishing according to the new device is preferably carried out at a low temperature up to 40 ° C., but in particular at room temperature. This means that the size is usually not warmed up, as is the case with cooking sizes.

The prior art includes a device similar to that described in DE OS 41 18 076. The device described, however, has some shortcomings that complicate the finishing according to the new vertical weaving principle. According to this DE OS, the wrap angle of the warp around the size application rollers is 30 degrees or more. This leads to some problems. For example, when the sizing procedure changes to idle, for example when there is an interruption in operation, when the warp has to be lifted off the sizing roller. This requires some technical effort.
In addition, a driving style with a 30 degree warp wrap angle causes a higher tractive effort on the part of the warp beam, which results in a higher energy requirement and can lead to frequent warp breaks.
Furthermore, the differential running speed relation between the warp beam and the size application rollers acts as a brake on the warp at a high warp wrap angle, which further potentiates the negative effects mentioned.

In another reference to the state of the art, namely DE OS 33 13991, an avivating device for wetting man-made fiber cables is described.
Synthetic fibers, however, are smooth cables in which the ability to absorb the fleece does not play a role, just like the so-called hairiness of the fibers in warps made from natural fibers. In this respect, a comparison with the creeping technique cannot be made here.

The demand for the sizing of warp chains has grown steadily in the course of the weaving machine development up to the jet weaving process. In the course of this development, the sizing devices were also modified. There has been no real breakthrough in recent years.
The horizontal weaving run principle of the sizing order on the warp and the cooking sizing remained. The shortcomings of this system are well known.
Apart from the large space requirement, there is a major disadvantage of this conventional sizing system due to the considerable energy requirement and the workload. Other than horizontal warp guide during sizing was not up for discussion with cook sizing. Since the cooking sizing in the traditional sizing application system completely squeezed the warp by means of squeeze rollers and doctor blades, the problem of surface adhesion of the sizing on the warp did not arise at all. The cook sizing system is therefore extremely material-devoid of material, since a full penetration of the warp with sizing is not necessary at all. For the subsequent weaving process, it is entirely sufficient if the warp is only covered with the size. A warp wrapping instead of a wetting assumes a reduced wetting effect of the size. The easiest way to achieve this is to lower the sizing application temperature. In plain text, with a so-called cold sizing that is applied to the warp at room temperature.
This was countered by the insufficient adhesion of the low-temperature sizing to the warp surface.
It was therefore considered to design the sizing application with vertical warp chain guidance, since the problems to be overcome in the application with cold sizing seemed to be overcome.
Adapting the sizing system to modern weaving technology is in the interest of the textile industry and above all the economic and ecological requirements of today.

The object of the invention is therefore to develop a sizing system consisting of a new sizing device and a correspondingly adapted sizing, which the requirements in terms of space requirements, energy consumption reduction, material savings and environmental relief.

• a) mindestens einer unteren Kettbahnumlenkwalze 5 , fungierend des weiteren als Tangentialkettleitwalze im Verhältnis zur unteren Schlichteauftragswalze 8 ,
• b) zwei Schlichteauftragswerken K , angeordnet beidseitig der Webkettbahn 12 , beinhaltend je ein Walzenpaar 7,8 und 9,10 zum Auftragen eines gleichmässigen Schlichtefilms auf die Webkette 12 , deren Schichtstärke über die Kettbreite durch die regelbare Spalteinstellung des Spaltes S gewährleistet ist und der konstante Beschlichtungsgrad der Webkette durch die Differenzlaufgeschwindigkeit zwischen den Walzen 8 und 9 und der Webkette12 erhalten wird , wobei die Walzenpaare 7,8 und 9,10 über die zur Schlichteauftragssektion gehörenden Bestandteile, Schlichtevorratstank, Schlichtefilier, Förderpumpen , Schlichtezulaufleitungen 27 , Schlichteüberschußablaufleitungen 17 , zurück in den Schlichtevorratstank mit Schlichte 14 gespeist werden,
• c) mindestens einer oberen Kettbahnumlenkwalze 19 , beziehungsweise einer ersten Trockentrommel 20 , fungierend des weiteren als tangentialkettleitwalze im Verhältnis zur oberen Schlichteauftragswalze 9 , und
• d) einer Trocknungsvorrichtung T,

wobei die einzelnen Vorrichtungsbestandteile so vertikal angeordnet sind, dass zwischen der unteren Kettumlenkwalze 5 und der oberen Kettumlenkwalze 19 , beziehungsweise einer ersten Trockentrommel 20 ,die Webkette 12 die dazwischenliegenden Schlichteauftragwalzen 8 und 9 der Auftragswerke K tangential durchlaufend so tangiert, dass ein beidseitiger ,definierter und gleichmässiger Schlichteauftrag auf die Webkette erfolgt.The object of the invention was achieved by a device for the finishing of textile warps according to the vertical weaving run sizing application principle consisting of the basic components; Warping drum 1, size application section 2, drying area 3 and warp beam 4, which is characterized in that the size application section 2 consists of:

• a) at least one lower warp path deflecting roller 5, furthermore functioning as a tangential warp guide roller in relation to the lower size application roller 8,
• b) two sizing applicators K, arranged on both sides of the warp web 12, each containing a pair of rollers 7, 8 and 9, 10 for applying a uniform sizing film to the warp 12, the layer thickness of which is ensured over the warp width by the adjustable gap setting of the gap S and the constant Degree of sizing of the warp is obtained by the differential running speed between the rollers 8 and 9 and the warp 12, the roller pairs 7, 8 and 9, 10 about the components belonging to the size application section, size storage tank, size filler, feed pumps, size supply lines 27, size excess flow lines 17, back into the Size storage tank can be fed with size 14,
• c) at least one upper warp web deflection roller 19, or a first drying drum 20, furthermore functioning as a tangential warp guide roller in relation to the upper size application roller 9, and
• d) a drying device T,

whereby the individual device components are arranged vertically so that between the lower warp deflecting roller 5 and the upper warp deflecting roller 19, or a first drying drum 20, the weaving chain 12 tangentially tangentially through the intermediate size application rollers 8 and 9 of the application units K such that a double-sided, defined and uniform size application is carried out on the warp.

The size application section 2 of the new device is further characterized in that the tangential contact of the weaving chain passing through the size application section as it passes the size application units K, to the application rollers 8 and 9 forms a contact angle β1 of between 10 and 50 degrees, the angle being doubled of the angle that results between the straight axis connecting line 15 and the horizontal axis and the roller pairs 7, 8 and 9, 10 form a straight line 15 with the roller axes 40, 41 by the linear connection of the roller axes, each forming an angle β2 of between 60 and 90 degrees with the vertical axis.

The angle β1 preferably has a value of between 10 and 30 degrees.

Fig. 1

die Schlichteauftragssektion 2 mit der vertikalen Führung der Webkette 12 ,den beiden Schlichteauftragswerken K mit den Schlichteauftragswalzenpaaren 7,8 und 9,10 , den den Webkettabhebevorrichtungen 21 und 22 und der winkelmässigen Anordnung der Schlichteauftragswalzenpaare 7 und 8 sowie 9 und 10 im Verhältnis zueinander sowie im Verhältnis zur Vertikal- und Horizontalachse,

Fig. 2

die Schlichtevorrichtung in der Variante mit Trommeltrocknung im Trocknungsbereich T mit der ersten Trocknungstrommel 20, die zugleich die Funktion der oberen Tangentialkettleitwalze erfüllt, sowie einer zweiten Trocknungstrommel 16 und dem vertikal, raumsparend angeordneten Webkett-Trennregister 18 zur Trennung der eventuell nach dem Schlichteauftrag und dessen Trocknung entstandenen Webkettverschmelzungen,

Fig. 3

wie Fig. 2, nur in der Variante mit Infrarottrocknung 30 im Trocknungsbereich T,

Fig. 4

wie Fig. 2, nur mit horizontalem Webketten-Trennregister 32 in der Richtung zum Kettbaum 4 nach ansonsten vertikaler Schlichteprozedur,

Fig. 5

eine Doppel-Schlichteauftragssektion 33 im Vorrichtungsverbund, als Mehrbahnsystem für dichte Webketten mit entsprechend grösser dimensioniertem Trockenbereich T,

Fig. 6

wie Fig. 3, nur im Verbund mit einer Schärmaschine 6 als Schärschlichtanlage mit Infrarottrocknung,

Fig. 7

eine Schlichtevorrichtung mit vier Schärtrommeln und entsprechend grösser dimensioniertem Trocknungsbereich T für Kombinationsschlichten,

Fig. 8

eine simplifizierte Schlichteauftragssektion 2, wo der definierte,gleichbleibende beidseitige Schlichteauftrag auf die Webkette rein schemenhaft dargestellt wird.

The following exemplary embodiments of the invention illustrate the new device as a sizing unit, and in detail the sizing application section 2. The individual figures show;

Fig. 1

the size application section 2 with the vertical guidance of the warp 12, the two size application units K with the size application roller pairs 7, 8 and 9, 10, the weave lifting devices 21 and 22 and the angular arrangement of the size application roller pairs 7 and 8 and 9 and 10 in relation to one another and in Relationship to the vertical and horizontal axis,

Fig. 2

the sizing device in the variant with drum drying in the drying area T with the first drying drum 20, which at the same time fulfills the function of the upper tangential warp guide roller, as well as a second drying drum 16 and the vertical, space-saving weaving separating register 18 for separating the possibly after the sizing application and its drying resulting warp mergers,

Fig. 3

2, only in the variant with infrared drying 30 in the drying area T,

Fig. 4

2, only with a horizontal warp separating register 32 in the direction of the warp beam 4 after an otherwise vertical sizing procedure,

Fig. 5

a double-finishing application section 33 in the device network, as a multiple-web system for dense warp with a correspondingly larger drying area T,

Fig. 6

3, only in combination with a warping machine 6 as a warping machine with infrared drying,

Fig. 7

a sizing device with four warping drums and a correspondingly larger drying area T for combination sizing,

Fig. 8

a simplified finishing job section 2, where the defined, constant two-sided Finishing order on the warp is shown purely schematically.

Fig. 1 shows in detail the two size applicators K arranged in the vertical direction of the warp from bottom to top, according to the direction of the arrow of the run of the warp 12, with the sizing rollers 8 and 9 located on both sides of the warp and the size feed rollers 7 and 10, the lower 21 and Upper 22 warp lifting device, consisting of the two rollers 23 with swivel arm 24, which serve to lift the warp in idle or stop run from the size application rollers. The torsion axis 25 serves to regulate the pressure for the size feed rollers 7 and 10, or to regulate the size application by the gap width of the roller gap S, the upper end 26 thereof simultaneously serving as a bearing for the size feed tube 27 for feeding the size 14 into the roller gap S. 12 is the uncoated warp 11 the one-sided weave 13 the double-sided weave. The sizing excess flow 17 takes place via the sizing drain line 34. 29 represents the weaving warp in idle, in the event of possibly required service work or an emergency stop. Simultaneously with the lifting of the warp in the cases cited, the heating register 30 opens, in the case of infrared drying, into the opened state 31.
FIG. 1 shows an application-typical setting of the tangential running direction of the warp in relation to the horizontal axis and the position of the size application roller pairs 7 and 8 and 9 and 10 relative to one another, in relation to the horizontal and vertical axes. Furthermore, FIG. 1 demonstrates the weaving run, as is typical of the application, during the finishing job on the warp and during the idling during any necessary lice phases.

Fig. 2 shows a sizing machine as a total vertical system, in the variant with a first drying drum 20, which also functions as a tangential guide roller in relation to the upper sizing roller 9 in an optimally space-saving design with regard to the length of the apparatus.
With the integrated inventive sizing application device 2, the construction shown is a preferred embodiment of the sizing apparatus.

Fig. 3 shows a similar vertical system as in Fig. 2, only a drying area with an infrared heating register is used instead of the drying drum drying area T.
30 shows the infrared heating register in the closed state during the sizing application phase, 31 in contrast in the open state during the idle phase. Fig. 3 shows a particularly preferred embodiment of the size apparatus in an optimally space-saving design with regard to the apparatus height and length.
Which of the two variants of FIGS. 2 and 3 relates to the need The cheaper energy costs depend on the local energy prices or the availability of an inexpensive central heating steam supply.

Fig. 4 shows the possibilities of variation of the working method and the individual possibility of partial improvement of existing conventional sizing machines. As shown, the warp treatment up to and including the warp drying is carried out according to the vertical principle and the connection processing according to the horizontal principle.

5 shows a further possible variation with multiple parallel size application. With this variant, the space savings are even more significant.

FIG. 6 shows a further combination variant by combining a warping machine 6 with a sizing machine.

Fig. 7 shows a sizing machine with simultaneous use of 4 warping drums. Depending on the type of warp used, the drying drums of the drying area T are larger. This variant of the overall system allows a relatively very low room height since the drying area is located on the room floor at a short distance behind the warp deflecting roller 19.

8 shows in a very clear manner how the individual sides of the warp are applied with size and the type of passage of the warp between the size application units K. The size supply and size excess derivation is shown in a very simplified manner

The size tanks, size filter, size circuit control system, size metering and automatic regulation and control systems belonging to the overall equipment correspond to the latest standard. A detailed discussion of the same is therefore unnecessary.

The invention also relates to the size which is applied in the new device in vertical warp running by means of rollers. The size should also be applied to the warp at a low temperature, preferably room temperature. These criteria place very special demands on the composition of the size, but especially with regard to the physical properties of the size. Another task is to develop the new size using readily biodegradable recipe components, as well as in such an application consistency that contributes to the size application can be regulated on the warp by means of the vertical roller application system in such a way that extremely economical use of size is possible.

When weaving non-twisted threads made of natural or synthetic fibers into flat structures, it is necessary to finish the so-called warp threads. This means that the warp threads must be made to slide well so that the weft thread can be easily passed back and forth through the warp threads without the warp thread or the weft thread being changed on the surface. A surface tangenting of the threads would not only possibly damage them, but would also lead to other undesirable effects, for example to the unevenness of the surface pattern of the fabric. In the course of technical progress and the further development of the weaving process, the weaving process nowadays takes place at very high weft speeds, whereby the weft thread is usually injected through the warp threads in the jet process. The sizes, aqueous fleets of dissolved or suspended solids, are therefore subject to high requirements with regard to the required useful properties. The sized warp should practically have a cable structure in terms of surface, that is, the size layer on the warp thread surface must be smooth and have good sliding properties. It must not stick when winding onto the warp beam, aging, (embrittlement) must not occur when the warp beam is temporarily stored and the size on the warp must be easy to wash out and biodegradable when the woven material is treated.
In order to meet all of these requirements, the size to be applied must be composed accordingly. In addition, for economic and ecological reasons, the application method and size composition should be designed so that the result is a product that meets the required maxims.

According to the prior art, there are various application methods for sizing warp threads using the different types of sizing.
All these processes have in common that the size is applied to the warp thread at temperatures above approx. 50 ° C and fixed in a drying process, usually in a tunnel oven.
In addition, the sizes often contain chemical polymers or polycondensates that are difficult to biodegrade.
Attempts have also already been made to apply sizing which is applied to the warp in the so-called cold sizing process at room temperature.

DOS 41 18 076 describes a sizing that is cold when it is at room temperature the warp is applied. Obviously, in order to meet the property requirements for the sized fiber, the size had to be used in a concentration of active and auxiliary substances of over 40%.
It is easy to imagine that with such highly concentrated solutions or suspensions, possibly even with a thixotropic consistency, complications arise with the handling of the size.
In addition, optimal loading of the fibers to be sized in terms of quantity is difficult to achieve. Overloading the warp to be sized, however, leads to loss of material and uselessly pollutes the waste water during the subsequent washing of the fabric.

The prior art knows many methods for fiber sizing by means of rollers and for wiping off the excess of sizing by means of doctor blades, which is one of the traditional methods of metering application quantities. This technique has some shortcomings. Wearing the doctor blades is worth mentioning, since synthetic fibers have highly abrasive properties, for example.
In addition, incrustations of the size constituents form at the squeegee wiping point, which crumble over time and strain the warp.
A constant size application temperature, usually around 90 ° C, is absolutely necessary for cook sizes. A temperature drop during the size application process, for example to 70 ° C, leads to an interruption in the process. The size becomes so viscous that a size application is no longer possible. On the adjoining drying rollers, scale incrustations are so massive that it is impossible to continue the process.
For this reason, some developments have been pushed to get as far as possible from doctor blade technology. The usual roller crushing method for the quantitative swelling of the warp also harbors considerable procedural risks because of the warp crushing.
Therefore, the consideration was given to applying the sizing to the warp without tension so that there is no swelling or wetting of the warp.
The problem with this type of finishing job is the complete and controlled weaving chain wetting. This is particularly so because the size is not thin-viscosity liquids, but mainly medium-viscosity liquids with a relatively high proportion of active ingredient, often consisting of solids.

The object of the invention was therefore to develop a size which easily meets all the requirements of a low-temperature size application process.

• a) biologisch leicht abbaubare filmbildende, textilfaseradhesive, leicht mit Wasser auswaschbare Grundkomponenten auf der Basis, von modifizierten Eiweisstoffen, von modifizierter Cellulose sowie von polymeren Vinylderivaten der Reihe der Polyvinylalkohole und Polyvinylpyrrolidone, als filmbildende zum Zwecke der Umhüllung der Webkette,
• b) Hilfsmitteln zur pH-Wert-Einstellung, Weichmachung, Hydrophilierung, Konservierung und Entschäumung der Schlichtelösung beziehungsweise Dispersion, wobei
• c) die Konzentration der genannten Schlichtekomponenten a) und b) zwischen 10 und 30 Gewichts% , bezogen auf das Gesamtgewicht , beträgt, und
• d) die Schlichte bei einer Temperatur von unter 40 °C auf die Webkette applizierbar ist.

The object was achieved according to the invention by sizing for sizing warp chains consisting of aqueous solutions or suspensions, which are characterized in that they contain as recipe components;

• a) readily biodegradable film-forming, textile fiber-adhesive, easily water-washable basic components based on modified proteins, modified cellulose and polymeric vinyl derivatives from the series of polyvinyl alcohols and polyvinylpyrrolidones, as film-forming agents for the purpose of wrapping the warp,
• b) auxiliaries for pH adjustment, softening, hydrophilization, preservation and defoaming of the size solution or dispersion, where
• c) the concentration of said size components a) and b) is between 10 and 30% by weight, based on the total weight, and
• d) the size can be applied to the warp at a temperature of below 40 ° C.

Film-forming raw materials based on natural substances from the proteins are, above all, caseins. On the basis of polymeric vinyl compounds, they are polyvinylpyrrolidone and especially polyvinyl alcohol, preferably with a low molecular weight to medium molecular weight. However, higher molecular weight polyvinyl alcohol compounds can also be used to round off the recipes in relation to the film formation of the size applied to the warp.

Aids for pH adjustment are so-called modifiers. Since the modifiers improve solubility, in the present case they are alkaline agents.

Aids for softening, so-called softeners, make the film layer of the sized warp elastic and supple and prevent it from aging. These are of particular importance if the proportion of medium or high molecular weight polymer compounds in the film-forming basic components is in the relatively high chemical molecular range.

Auxiliaries for hydrophilization serve to stabilize the viscosity consistency and the storage stability of the ready-to-use size. The commercially available glycol and glycerin ethers, polyethylene glycols, carbohydrates, polycarbonates and similar neutral compounds containing OH groups are used as hydrophilizing agents.

Preservation aids serve to preserve the ready-to-use size. Those with multifunctional groups are preferably used. The advantage of these preservatives is that they are only used in very small quantities and are therefore biodegraded faster. Preservation of the size is not necessary if the size is used directly.

Aids for defoaming are required if the fiber permeation speeds through the sizing bath are relatively high.
Preferred defoamers are those based on fatty amines, since they also act as lubricants.
The concentration of the individual basic components in the size depends on the application in individual cases and can be specifically adjusted to a type of fiber in the warp. In practice, the division into fiber groups such as synthetic fibers and natural fibers, or alkali-resistant fibers such as cotton or acid-resistant fibers such as wool.

The preferred concentration of size components a) and b) is between 15 to 25% by weight, based on the total weight of, for example, 1000 g.

Modified cellulose derivatives is, for example, a starch-modified carboxymethyl cellulose.

Basic formulations can have the following concentration ranges.

50 - 85%

Casein

2 - 15%

alkalischer Modifizierer

2 - 17%

mittelmolekulares Polyethylenglykol

2 - 21%

eines Weichmachers auf Naturfettaminbasis

0,1- 4%

Entschäumer

0,5- 7%

Hydrophilierungsmittel

0,5- 4%

Konservierungsmittel

Die einzelnen Komponenten werden gemischt und das fertige Gemisch wird unter Rühren in Wasser gelöst. Der Wasserzusatz erfolgt derart, dass fertige Schlichtelösungen mit Einsatzstoffkonzentrationen von zwischen 10 bis 35 Gew.% entstehen. einen 100 l Container 20 kg des obigen gut durchmischten Konzentrats in 20 l Wasser gelöst.
Die danach erhaltene wässrige Schlichtelösung ist eine gebrauchsfertige Applikationslösung für das Schlichten von Baumwolle-Webketten bei einer Applikationstemperatur von 20 °C und hat einen Konzentratgehalt im bevorzugten Bereich von 20 Gewichts%.
Mit derart hergestellten Schlichten kann jede gewünschte Schlichteaufnahme auf die zu schlichtende Webkette für jede gewünschte Faserart erreicht werden.Basic product formulation for a casein-based wash:

50 - 85%

Casein

2 - 15%

alkaline modifier

2 - 17%

medium molecular polyethylene glycol

2 - 21%

a plasticizer based on natural fatty amine

0.1-4%

Defoamer

0.5-7%

Hydrophilizing agents

0.5- 4%

Preservative

The individual components are mixed and the finished mixture is dissolved in water with stirring. The water is added in such a way that finished size solutions with feed material concentrations of between 10 to 35% by weight are produced. a 100 l container 20 kg of the above well-mixed concentrate dissolved in 20 l water.
The aqueous sizing solution obtained afterwards is a ready-to-use application solution for the sizing of cotton warp chains at an application temperature of 20 ° C. and has a concentrate content in the preferred range of 20% by weight.
With the sizes produced in this way, any desired size pick-up on the warp to be finished can be achieved for any desired type of fiber.

The inventive sizing device is relatively insensitive to the viscosity of the sizing to be applied.
The viscosity of the size to be used is therefore not specified; it must be adapted to the current conditions with regard to type of warp, size and the desired degree of size.

50 - 86%

niedrigmolekularer Polyvinylalkohol

2 - 15%

hochmolekularer Polyvinylalkohol

2 - 17%

mittelmolekulares Polyethylenglykol

1 - 21%

Weichmacher auf Naturfettaminbasis

0,1- 4%

Entschäumer

0,5- 7%

Hydrophilierungsmittel

0,5- 4%

Konservierungsmittel

Ansonsten gilt gleiches wie bei der vorgenannten Formulierung.
Die Schlichten hergestellt nach einem Rezept dieser Basisformulierungen werden nach dem Kaltschlichteverfahren angewandt. Die Schlichte wird nicht, wie es ansonsten üblich ist,bei ca 90°C auf die zu schlichtende Webkette aufgetragen, sondern bei Raumtemperatur, bis maximal 40°C. Bevorzugt ist jeweils die vorherschende Raumtemperatur.Another basic product formulation for a size based on polyvinyl alcohol is as follows:

50 - 86%

low molecular weight polyvinyl alcohol

2 - 15%

high molecular weight polyvinyl alcohol

2 - 17%

medium molecular polyethylene glycol

1 - 21%

Softener based on natural fatty amine

0.1-4%

Defoamer

0.5-7%

Hydrophilizing agents

0.5- 4%

Preservative

Otherwise, the same applies as for the aforementioned wording.
The sizes produced according to a recipe for these basic formulations are used according to the cold size process. The size is not applied to the warp to be sized at around 90 ° C, as is otherwise customary, but at room temperature, up to a maximum of 40 ° C. The prevailing room temperature is preferred in each case.

The degree of sizing can be set reproducibly, while maintaining selectable speed difference ratios of the warp transport rollers to the size application rollers, which can be varied depending on the fiber material to be size. Another advantageous effect of the roller speed-speed difference is that the warp is smoothed by the surface and the fiber hair of natural fibers is switched off.

The advantage of the new device is that it optimally corresponds to the practical conditions, with the greatest possible compatibility with existing machines, such as a warping machine and a largely uncomplicated and space-saving design.

It is surprising that it was found that a larger amount of tension in the warp to be sized around the size application rollers does not lead to an optimal degree of size. This finding led to the present invention, with ultimately diverse uses, such as energy saving, reduction of warp breakage cases, combination with process-compatible devices.
The invention is progressive because the inventive sizes are particularly environmentally friendly because of their easy biodegradability. Since it can be applied cold, this saves energy that would otherwise be required to warm up the size continuously. The workplace climate is significantly improved due to the absence of steam, and the optimized angle setting of the entry and exit of the fibers in the sizing process optimizes the degree of sizing so that when the fabrics to be washed are ultimately washed, there is far less waste water pollution than when using cooking sizing.
Investments are saved due to the machine compatibility.
It is surprising that size concentrations of between 10 and 30% by weight could be obtained in solution and that these can be applied excellently to the warp. Cooking sizes are in the concentrate content range of up to 10% by weight and only get a usable viscosity consistency at their high application temperature.

REFERENCE SIGN LIST

1

Warping drum

2nd

Finishing order section

3rd

Drying area

4th

Warp beam

5

lower warp deflection roller

6

Warping machine

7

lower size feed roller

8th

lower sizing roller

9

upper size feed roller

10th

upper sizing roller

11

one-sided plain warp

12th

unfinished warp

13

double-sided warp

14

plain

15

straight line, connection of axes 40.41

16

second drying drum

17th

Size excess drain line

18th

Vertical warp separation register

19th

upper warp deflection roller

20th

first drying drum

21

lower warp lifting device

22

upper warp lifting device

23

Warp lift rollers

24th

Swing arm of the chain lifting device

25th

Torsion axis

26

upper end of the torsion axis with bearing for size feed tube

27

Size feed line

28

Size feed pipe

29

Weaving web in idle

30th

Infrared heating register

31

Infrared heating register in the open state

32

Horizontal warp separator register

33

Double finishing application section

34

Size excess drain pipe

40

Axis of the sizing roller

41

Axis of the size feed roller

K

Finishing works

T

Drying devices

S

Roller gap for regulating the size application film

β1

Warp contact angle

β2

Positioning angle of the pairs of size application rollers to one another

Claims (6)

Device for finishing textile warps according to the vertical weaving run sizing application principle consisting of the basic components; Warping drum (1), size application section (2), drying area (3) and warp beam (4),
characterized in that the size application section (2) consists of: a) at least one lower warp web deflecting roller (5), furthermore functioning as a tangential warp guide roller in relation to the lower size application roller (8), b) two size applicators (K), arranged on both sides of the warp web (12), each containing a pair of rollers (7,8) and (9,10) for applying a uniform size film to the warp (12), the layer thickness across the warp width by the adjustable column
s position of the gap (S) is guaranteed and the constant degree of sizing of the warp
d is obtained by the differential running speed between the rollers (8) and (9) and the warp (12), the roller pairs (7,8) and (9,10) using the components belonging to the size application section, size storage tank, size filter, feed pumps, Size feed lines, size excess drain lines (17), are fed back into the size storage tank with size (14), c) at least one upper warp web deflecting roller (19), or a first drying drum (20), furthermore functioning as a tangential warp guide roller in relation to the upper size application roller (9), and d) a drying device (T), wherein the individual device components are arranged vertically so that between the lower warp deflecting roller (5) and the upper warp deflecting roller (19), or a first drying drum (20), the warp (12) the intermediate size coating rollers (8) and (9) Commissioned works (K) tangentially continuously so that a double-sided, defined and even size application is carried out on the warp (12). Device according to claim 1, characterized in that the tangential contact of the weaving chain passing through the size application section as it passes the size application units (K), to the application rollers (8) and (9) forms a contact angle (β1) of between 10 to 50 degrees, the angle resulting from the doubling of the angle between the straight axis connecting line (15) and the horizontal axis and the pairs of rollers (7, 8) and (9, 10) with the roller axes (40, 41) form a straight line (15) through the linear connection of the roller axes, each with an angle (β2) of between 60 to Form 90 degrees. Apparatus according to claim 2, characterized in that the angle (β1) has a value of between 10 to 30 degrees. Sizing for sizing warp chains using the device according to claims 1 to 3, consisting of aqueous solutions or suspensions, characterized in that they contain components as a recipe; a) readily biodegradable, film-forming, textile fiber-adhesive, easily water-washable basic components based on modified proteins, modified cellulose and polymeric vinyl derivatives from the series of polyvinyl alcohols and polyvinylpyrrolidones, b) auxiliaries for pH adjustment, softening, hydrophilization, preservation and defoaming of the size solution or dispersion, where c) the concentration of said size components a) and b) is between 10 and 30% by weight, based on the total weight, and d) the size can be applied to the warp at a temperature of below 40 ° C. Sizing according to claim 4, characterized in that textile fiber adhesives and film-forming raw materials based on natural substances of the proteins, caseins, on the basis of polymeric vinyl compounds, polyvinylpyrrolidone and polyvinyl alcohol, preferably with low molecular weight to medium molecular weight and on the basis of cellulose, carboxymethyl cellulose and their modified derivatives . Sizing according to claims 4 and 5, characterized in that the concentration of the sizing components a) and b) in the ready-to-use size is between 15 and 25% by weight.

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