DK176683B1 - Tubular holding bag - Google Patents

Description

in DK 176683 B1

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular flexible material holding bag intended for use in holding mink skin in an extended position outside a hollow play element / tan during drying, which prior to initiating the wiping procedure is subjected to a water brushing.

5 Drying of the leather side on fur from fur animals is well known, where the drying takes place after the skin is stretched and fastened with staples on a flat wooden stick, a tane, in order to retain the skin as much as possible. The use of staples causes damage to the skin in the form of large holes at the lower end 10 of the skin, which degrades the value of the skin. In addition, there are further disadvantages of using the known tans, of which there may be mentioned, failure to dry the skin in certain areas of this where the leather side is close to the tan surface, long drying time, and cumbersome tanning procedure.

Said problems have previously been solved by a method and a play-out element, as stated in WO 2005/026394 A1, in which the skin is applied and extended, except for a hollow play-out element comprising a first and a second wide side surface of interconnected, cooperating, vaulted half shells with an open structure, one end (foot end) of which is cut at a right angle relative to the longitudinal axis of the play member / tan, and whose width gradually decreases towards a pointed, yet rounded end portion (nose end), the surface of which at least in the drying region, but preferably over the entire surface, has an open structure, with the leather side facing the playout element, and wherein the skin is held in this position during the drying process by applying a holding bag in accordance with the principles set out in WO 01/62985 A1, which in the at least over a portion of the lower end of the skin (tail end), this presses against the surface of the play element / tan, and where t The lubrication of the leather side of the skin takes place by replacing the air inside the cavity of the playing element, and thus the air which is under the open structure.

30

The skin is effectively held in the extended position during the drying process by an interaction between the surfaces of the vaulted half shells with the open. structure and a narrowed area of the tubular holding bag that is pulled outside the hair's side of the skin, at least over a portion of the lower end of the skin (ha-DK 176683 B1 2), where the bag in the narrowed area presses the leather side of the skin against the open structure of the release member, thereby retaining the leather side of the skin in its extended position during the drying procedure.

5 This allows for effective drying of the leather side of the leather and also during the drying process the skin can be held out extensively on the playing element, without the use of destructive staples, the skin being held in its extended position by a holding bag. Use of the holding bag also has the advantage that the skin becomes easier to remove from the play element after the end of the drying procedure, since no staples need to be removed before the skin can be separated from the tan and the drying time of the drying procedure is otherwise considerably reduced by the method according to the invention. Furthermore, skins are dried according to the method of the invention uniformly dried, without black spots which can cause hair loss on the skin side of the skin.

15

It should be noted here that in the above patent publication, the tubular bag blank used in connection with the retention of the extended skin can be used both with traditional wooden tins, as well as with the aforementioned newer types of tans comprising two interconnected, vaulted half shells 20 with an open surface structure.

A traditional wood tan can be defined as a flat piece of wood having a first and second wide side surfaces and a first and second narrow side surfaces whose width is significantly smaller than the width of the wide side surfaces and whose end 25 (the foot end) is cut into a right angle with respect to the longitudinal axis of the tan, the width of which gradually decreases towards a pointed but rounded end portion (nose end), and wherein the tan has a slot symmetrically located about the longitudinal axis of the tan extending between the tip end and at least over half of the tan length.

Furthermore, males are calculated between drying males from females, which are usually larger than females from females, and males intended for females are both shorter and narrower than those used for drying males from males. Near the foot end, the male tanner comprises a portion wherein the first and second narrow side surfaces extend parallel to the width of the tan used for drying females, decreases along the entire length between the foot end and the rounded nose.

5 It should be noted here that in the following the terminology playback element and tane are interchangeably, which means an item beyond which is applied a leather with a leather side facing the item, where the skin is extended and held in this position (tanes) during drying of the leather side of the skin.

In addition, the tan is most often provided with a tan inner bag consisting of a liposuction 10 and fat-absorbing material, for collecting residual fat (residual fat) on the leather side of the skin.

The drying procedure where the leather side of a tan skin takes place as already stated, by replacing the air in the play element / tan cavity. One method of performing this air replacement is disclosed in WO 2005/026394 A1, wherein the tan with the tan skin is placed upright in a drying unit provided with a fan / suction unit which causes the air in the tan cavity to be replaced. The dryer assembly (s) with a plurality of tans is placed during the drying procedure in a drying room, in which the humidity and temperature are conditioned so as to obtain an effective and uniform drying of the leather side of the skins.

Processing and handling of skins in a fur shop, between skinning and tanning, where the skins are transported in air-driven conveyors and disposed in bulk before being cleaned of sawdust etc. As a result, experience shows that it is not only the size of the skins, but also the way in which the hairs of the skins appear after drying and drying, which is crucial to where high at a price that can be obtained from the sale of the fur at an auction, so it is of great importance to obtain the largest possible price for a fur that after drying it appears with a uniform, neat and smooth hair side.

DK 176683 B1 4

It has previously been attempted to solve this problem by performing a manual water-brushing of the skins, or by applying a holding bag beyond the hair-side of the skin, the shape of which is essentially adapted to a tan with an applied, extended skin, which extends in essentially corresponds to the entire length of the skin in the longitudinal direction. This method has also, to some extent, been instrumental in improving the appearance of the hair side of the skins after the drying procedure is completed and the skins stripped. However, it has been found that the prior art brushing of the skins is clearly preferable, since this gives the best result. In this context, it has been found appropriate to use a short 10 holding bag of the type specified, rather than the aforementioned long one, thus allowing a manual brushing of the skins before the drying procedure is initiated.

However, new and more modern approaches are also needed here in order to reduce the consumption of manual labor. Previously, the water brushing of skins was done by manually tapping the skinned skins against a rotating horse hair brush whose brushes pass a water bath at each full rotation, thereby supplying water to the hair side and mechanically treating the horse hair brushes. However, this work is relatively man-consuming, and thus a method and a machine have been developed which can efficiently and quickly perform the work with the water brushing, i.e., that at once the skin's hair-side water is supplied from a nozzle, and immediately after passage of the nozzles, follows a brushing with a plurality of rotating brushes which pass down the skin from the nose end to the tail root of the skin, immediately after the tanning of the skin has occurred and where the tan with the skin is in an upright position, before the tan with the tan skins, still in the upright position, are mechanically placed in the dryer.

This thus requires the use of a tan bag which covers as little an area of the hair side of the skin, taking due account of the spread of the narrowed area of the holding bag, to obtain the necessary holding power for retaining the skin extended on the tan. Furthermore, it is necessary that the holding bag must be of a certain length in order to make it possible to perform a machine-made placement of the holding bag during the tanning procedure. Thus, there are two contradictory factors, namely the fact that the size of the bag is desired in the longitudinal direction of the skin as short as possible, in order to be able to carry the water brushing over as much area as possible on the hair side of the skin, at the same time as the spread of the narrowed area, and the length to be able to apply this machine externally to an extended skin on a current tan, in the holding area of the tan, with the narrowed area of the hoist bag located in the immediate vicinity of the tail's root. Furthermore, it is of great importance that water / moisture resulting from the water brushing between the holding bag and the hair side of the skin is not accumulated, as this can reduce the drying of the skin, which necessitates a longer drying time for this part of the skin. damage to the other part of this.

It is thus the object of the invention to provide a short tan bag which ensures that an efficient mechanical handling of the holding bag during tanning of the skin, while also ensuring that no moisture / liquid is collected between the hair side of the skin and the holding bag.

This object is achieved by a holding bag of the specified type, characterized in that the tubular holding bag at the end oriented towards the tan comprises at least one slit / punching which extends substantially between the end oriented towards the tan. the constriction and the end of the tubular holding bag facing the tan's face.

Hereby it is obtained that the slotted part of the holding bag, by a mechanical action of a protruding member with a non-slip coating on the front of a water brushing assembly which is passed over the hair side of the skin, starting from the skin's face, can be curved beyond the narrowed area by the holding bag, whereby no water will accumulate under that part of the holding bag located above the narrowing area, but any 30 drops of water on the hair side of the water-brushed skin will be diverted. Remained water from the water brush will not penetrate under the holding bag in the narrowed area, since the bag in this area is pressed firmly against the hair side of the skin in order to retain the skin in the extended position on the tan for water to penetrate.

In order to achieve an appropriate course of folding of the slotted portion of the holding bag, the slitting / punching may advantageously be oriented parallel to the longitudinal axis of the tubular holding bag. Hereby, it will be possible to perform the folding machine by simple means, such as blunt 5 protruding members, at the front of an automatic water brushing unit, provided with anti-slip surfaces oriented against the surface of the tan, and which can be brought from an passive position to an active position where these are pressed against the slotted portion of the holding bag and which, while continuing to downgrade the water brush assembly, will cause folding of the slotted portion of the holding bag to a nine-level where the narrowing area begins.

In order to ensure optimum handling of the holding bag under tension by tanning the skin, the contacting sides of the slit / die can be interconnected in a narrow region at the end of the holding bag facing the tan. In this way, the holding bag during the mechanical operations with this during the tanning procedure will appear as a tubular workpiece. However, in connection with the folding and unfolding of the slotted portion of the holding bag, said connection will be broken by the influence of the protruding members at the front of the automatic water brushing unit, thereby facilitating the folding and folding of the holding bag.

While it is also expected that some drying of the hair's surface of the skin is required in the area below the narrowed area of the holding bag, the tubular holding bag may advantageously be made of a material which is permeable to air, vapor and moisture.

In order to provide a holding bag which is relatively inexpensive, at the same time as its holding properties, or ability to compress the skin against the tan in the holding area, the tubular holding bag may advantageously be made of a flexible plastic film sheet.

In order to provide the possibility of diffusion of water vapor and moisture through the holding bag, especially in cases where it is made of flexible plastic film, the tubular holding bag may be perforated by perforations.

DK 176683 B1 7

It is further preferred that the constricted area of the tubular holding bag is constituted by at least one weld substantially oriented parallel to the longitudinal axis of the holding bag.

Further, said weld (s) may advantageously be provided at the ends with a smaller transverse weld, which is generally oriented across the longitudinal axis of the holding bag. The advantage of this is that the weld (s) are thereby strengthened so that they are not torn up, e.g. during the mechanical handling and placement of the tan, beyond the extended skin, during the tanning procedure, and under the mechanical influence of the blunt protruding members of the water brush assembly during the folding and unfolding of the slotted portion of the holding bag. However, it should be noted that the smaller transverse welds are not necessarily in direct contact with the weld (s) oriented parallel to the longitudinal axis of the holding bag. Thus, the smaller transverse welds may also be located in close proximity to the ends of the welds.

The invention will be explained in more detail below with reference to the drawing, in which 1 is a top view of a short tubular holding bag, comprising a slit according to the invention, for use in brushing toothed skins,

FIG. 2 is a detail section of the slotted portion of the one shown in FIG. 1, tubular holding bag,

FIG. 3 is a sectional view of a tane, with the one shown in FIG. 1, holding on a tane 25, which holds a stretched skin on a tane,

FIG. 4 shows the same as in FIG. 3, but where the slit portion of the holding bag over a narrowed area is folded and folded inwardly over the narrowed area,

FIG. 5 shows a tane; FIG. 6 shows the one shown in FIG. 5 with a tine inner bag for absorbing residual grease on the Ether side of the skin,

FIG. 7 shows the one shown in FIG. 6, now provided with a mink skin,

FIG. 8 shows the one shown in FIG. 7 with a leather bag, in which a holding bag similar to that of FIG. 1 is positioned outside the tip end of the tan. FIG. 9 shows the one shown in FIG. 8, wherein the skin is tan (stretched and held in the projected position) and held by a holding bag similar to that of FIG. 1,

FIG. 10 shows the one shown in FIG. 9, where the slotted portion of the holding bag is folded over and folded over the narrowed area of the holding bag, and DK 176683 B1 8

FIG. 11 is a schematic sketch of an automatic water brushing machine for water brushing of tanned skins, which are retained with holding bags according to the invention.

In FIG. 1 shows a first embodiment of a short tubular holding bag 2 intended for use in connection with the retention of the skin in an extended position on a tane 4 (cf. Fig. 3 et al), where the skin is subjected to a water brush after tanning. The holding bag 2 is shown in the illustrated embodiment with parallel extending sides 6, 8, but in another embodiment not shown, the holding bag 2 can be designed such that its cross-section has a conical course.

10

Furthermore, as can be seen from FIG. 1, the holding bag 2 has a narrowed area 10 defined by two parallel running welds 12, 14 which further extend parallel to the center axis of the holding bag 16. In the illustrated embodiment of the holding bag 2, welds are completed with minor welds. 15 18 at the ends, which minor welds 18 are generally oriented in a transverse direction with respect to the orientation of the welds, in order to counteract tearing of the welds 12, 14 in connection with the positioning of the holding bag 2 outside a skin 20 on the tine 4.

20 As is further apparent from FIG. 1, the holding bag 2 comprises a punching / slitting 24 in a region 25 (Fig. 3) of the holding bag extending from near the narrowed area 10 to the first end 22 of the holding bag 2. The punching / slitting 24 can, as shown in FIG. 2, which is a section of the holding bag 2 at the first end 22, having a smaller continuous course 26, so that the holding bag 2 25 during its mechanical handling is taken from it from a supply of holding bags 2 until it is finally placed on a taned leather 20, appears as a tubular blank, which facilitates the machine operation with the holding bag, thus no loose tabs etc. during handling.

In FIG. 3, the holding bag 2 is shown arranged in the holding position outside a taned skin 20, with the first end 22, and thus the punching / wear 24 oriented towards the tine end (not shown). If water brushing of the skin 20, with the tan 4 in the upright position occurred, excess water 28 from the brushing process would accumulate between the hair side of the skin and the holding bag in the area immediately above the constriction 10, indicated by the arrow A. Water as would be closest impossible to remove, unless the drying time of the skin had to be significantly increased, with adverse effects on the quality of the part of the skin which lies outside the holding bag area.

DK 176683 B1 9 In fig. 4, it can be seen in FIG. 3, with the tapered skin 20 retained in the extended position of the holding bag 2, but where the slotted portion 25 of the holding bag 2 is now folded over and folded over the narrowed area 10 of the holding bag. As can be seen, the unbroken region 26 (Fig. 2) is broken to facilitate the folding and unfolding of the holding bag 2, performed simultaneously and mechanically, together with a water brushing of the toothed skin 20. The water brushing procedure is described later.

10 In FIG. 5 shows a tane 4 of the specified modern type consisting of two interconnected vaulted half shells 59 with open surface structure, with a pointed end 30 and a footing 31, from which is seen a protruding portion 33, including is used to maintain the tan in the upright position.

In FIG. 6 is the one shown in FIG. 5, now provided with a tubular tannery bag 35 consisting of a liposuction / fat absorbing material, for absorbing residual fat on the leather side of the skin.

In FIG. 7 shows the tane 4 shown in FIG. 6, now provided with a mink skin 20.

In FIG. 8 is the one shown in FIG. 7, now also provided with a short tubular holding bag 2, according to the invention, pulled outside the nose end 30 of the tan and the skin 20.

In FIG. 9 is the one shown in FIG. 8, now with the skin extended and held in the extended position by means of the tubular holding bag 2 according to the invention, which is now displaced down the hair side of the skin, so that the narrowed area 10 of the bag is positioned so that it is oriented towards the foot 31 of the tooth. outer boundary 11 extends parallel to the lower end of the skin at its tail root 21.

In FIG. 10 is the one shown in FIG. 9, after water brushing of the toothed skin 20, wherein the area 25 of the holding bag 2 with the punch / slit 24 is folded over and folded over a portion of the narrowed area 10 of the holding bag 2 according to the invention. The folding and unfolding of the area 25 of the holding bag 2 means that 35 water cannot be collected from the water brushing process between the holding bag and the hair side of the skin, which means that the skin 20 can be dried in the normal way.

10 DK 176683 B1

The water brushing of the skin, as outlined in FIG. 11, wherein the tan 4, with the tan skin 20 retained by the short tan bag 2 according to the invention, is held in an upright position, in a manner not specified. A water brushing assembly 40 comprising like mirrored machining stations 42 which 5 are guided by not shown guide and guide means 30 from the tine / skin face 30 and down along the skin side surfaces 44, 46. Each processing station 42 comprises a blunt projection 48 oriented against the side faces 44 , 46, which bluntly projecting member 48 at its free end comprises a coating 50 of highly anti-slip material, for example rubber, intended for folding and unfolding 10 of the slotted portion of the holding bag 2 by downputting the processing stations 42 to the narrowed area 10 of the holding bag.

Immediately behind the member 48 is a nozzle arrangement 52 comprising nozzles 54 connected to a water reservoir 56 via a pump 58 such that the water supplied to the nozzles 15 is pressurized sufficiently to atomize so as to achieve an even and effective distribution over the skin surface of water.

Above the nozzle arrangement there is a brush arrangement 60 comprising rotating rollers provided with curved horse hair brushes 62 which work the water-wetted hair side of the toothed skin 20 at the nozzle arrangement 52.

The processing stations 42 are lowered parallel to the side faces 44, 46 of the tan in the direction of arrow B until the brush arrangement has worked the skin on the side faces, to the beginning of the narrowed area 10 of the holding bag 2, then the processing stations 42 are displaced a short distance away from the side faces 44 of the tan. , and is returned to the output level, immediately above the next supplied tane with a tan skin.

Thus, the short slotted holding bag 2 of the invention provides an opportunity to perform a machine-made, non-destructive tanning and drying of mink skins, while at the same time allowing a machine-made water brushing of the hair side of the tanned skins, without risk for collecting water resulting from the water brush between the hair side of the skin and the holding bag.

35 i

Claims (8)

1. Tubular holding bag (2) of flexible material intended for use for holding mink skin (20) in an extended position outside a hollow spout element / tan (4) during drying, which mink skin prior to initiation of the wiping procedure is subjected to a water brush, which spout element comprises a first and a second wide side surface (44, 46) of interconnected, cooperating, vaulted half shells with an open structure, one end (31) (foot end) of which is at right angles to the longitudinal axis of the play element / tan, and the width 10 of which gradually decreases towards a pointed but rounded end portion (30) (nose end) and wherein the skin (20) is held in the extended position during the drying process by an interaction between the surfaces of the open structure curved half shells and a narrowed area (10) of the tubular holding bag (2) being pulled beyond the hair side of the skin, at least over a portion of the lower end of the skin (tail end) ) in which the bag in the narrowed area presses the leather side of the skin against the open structure of the play element and where the drying of the leather side of the skin takes place by replacing the air within the space of the play element, and thus the air which is under the open structure, characterized in that the tubular holding bag (2) at the end (30) oriented towards the tan 20 comprises at least one slit / punch (24) extending substantially between the end oriented towards the tan (30) the constriction (10) and the end (22) of the tubular retaining bag (2) facing the tine face (30). 25 Tubular holding bag (2) according to claim 2, characterized in that the slit / punch (24) is oriented parallel to the longitudinal axis (16) of the tubular holding bag. A tubular holding bag (2) according to claim 1 or 2, characterized in that the contacting sides of the slit / die are interconnected in a narrow region (26) at the end (22) of the holding bag (2) facing towards the tan. Tubular holding bag (2) according to any one of claims 1-3, 35 characterized in that it is made of a material which is permeable to air, vapor and moisture. DK 176683 B1 12 A tubular holding bag (2) according to any one of claims 1-3, characterized in that it is made of a film of flexible plastic material. 5 Tubular holding bag (2) according to any one of claims 1-5, characterized in that the tubular holding bag is perforated by perforations. Tubular holding bag (2) according to any one of claims 1-6, 10, characterized in that the constriction (10) consists of at least one, but preferably two parallel welding (s) (12, 14) which is oriented parallel to the longitudinal axis of the holding bag (16). A tubular holding bag (2) according to any one of claims 1-7. 15, characterized in that the weld (s) is provided with a smaller transverse weld (18), which is generally oriented across the longitudinal axis (16) of the holding bag. 20