ES2172866T5 - PROCEDURE FOR MANUFACTURING OF FIBER CELLULOSICAL PRODUCTS, SUCH AS SPECIFICALLY SCARVES OR NAPKINS. - Google Patents

Abstract

The procedure is for manufacturing cellulose fibre products such as paper handkerchiefs or serviettes, which may be rectangular or square in shape. Continuous strips (B1,B2) of paper are printed with two different and alternating designs (M1,M2). They are then cut into individual handkerchiefs or serviettes and are stacked prior to packing so that each stack contains articles with alternate designs. The paper used for the procedure is taken from a roll (10) and two rows of alternating designs are printed on it before the strip is divided lengthwise. Each section then passes through a folder (30) to fold the articles lengthwise, then a cutter (32) and finally another folded (34) to fold them transversely before stacking.

Description

Product manufacturing procedure fibrous cellulosics, such as especially handkerchiefs or napkins

The present invention relates to a manufacturing process of fibrous cellulosic products, such as especially handkerchiefs or rectangular napkins or squares.

A marketing mode of this type of products consists of distributing them in the form of product stacks which are generally all cut with the same format, each stack comprising a certain number of products and being packed in a film or a case of flexible plastic material transparent that can include information and decorations advertising Other materials are also used.

In order to make this type of product yet more attractive, it has already been proposed to present, in each product, A decorative motif.

It may be a colored motif that is printed on the product and / or embossed motif in the product thickness

Always with the aim of increasing the pleasure of use of this type of product sold by packages of stacked products, it has also been proposed that each stack of products include products with at least two reasons different, each stack comprising alternately products that comprise a first motive and some products that comprise a second reason other than the first.

To this end, it has been necessary to perform stacks of alternate products before final conditioning of these batteries in packages in some cases.

For this, a procedure has already been proposed of manufacturing that consists of making a first series of products that each comprise a first decorative motif and that are cut to the desired format, to make at least a second series of products each comprising a second motive decorative and that are cut to the desired format, and to constitute next a battery that alternatively comprises about first and a few second cut products for later battery conditioning comprising products belonging to both series.

According to a known technique, each series of products is done independently of each other, and then  the products are placed in batteries, by some means automated, which come to alternately take a product in one or the other of the series of cut products.

This manufacturing procedure is particularly complex, slow and expensive in its final phase, since it requires, in addition to the classic facilities that allow the independent manufacturing of the two series of products, arrange of a complementary installation for alternate stacking.

Another known technique is used for imbricated facial type products. However, to get the desired result, that is a handkerchief with an embossing A followed by a handkerchief with an embossing B, it would be necessary to install a group of embossing on each of the cellulose wadding coils, which It implies an increase in non-negligible material.

The object of the invention is to propose a new manufacturing procedure that allows the installation to be suppressed complementary alternate stacking, and therefore reduce the Time and cost of manufacturing product packages alternated

To this end, the invention proposes a manufacturing process of the type mentioned above according to claim 1.

The cutting of the band allows to obtain the flow in continuous alternating products that can be immediately automatically stacked one behind the other to constitute the desired battery

For some products, and especially in the In the case of paper tissues, the products are folded, according to a longitudinal orientation, before being cut to the format, and they can also be folded according to a transverse orientation after being cut to the format and before being stacked

Thanks to these characteristics, you get directly stacking folded and patterned scarves alternated

To increase the production capacity of a manufacturing unit of these products, are made simultaneously two continuous and adjacent bands for the simultaneous constitution of two batteries that each comprise minus two products alternated with different motifs, and the two adjacent bands are made in a single width that is longitudinally separated into two bands before cutting bands.

The alternate products of each of the two adjacent bands may have the same length and be aligned longitudinally or they may be displaced longitudinally.

Each of the two bands can comprise alternatively first and second products, being by example a first product of one of the bands adjacent to a second product of the other band.

Each band can comprise an association of al minus two individual sheets, or sheets, of cellulose wadding, overlays The two bands can be the same color or not, and be composed of cellulose wadding of a different nature.

A continuous band comprises successive and alternatively in its length a few seconds and a few seconds fibrous cellulosic products that respectively have a First and second decorative motif.

Other features and advantages of the invention by reading the following detailed description, for whose understanding reference will be made to the attached drawings, in which:

- Figure 1 is a schematic view in perspective of the main elements of an installation for Performing a manufacturing procedure in accordance with the teachings of the invention;

- Figure 2 is a schematic elevation view illustrating the position of the different motifs in a cylinder embossing engraving belonging to the installation of the figure one;

- Figure 3 is a detailed view that illustrates a part of a recorded width by means of the cylinder of Figure 2 and comprising two adjacent bands of handkerchiefs with alternating and longitudinally aligned motifs;

- Figures 4 and 5 are two schemes that allow to illustrate different arrangements of motifs and bands in the same width; Y

- Figures 6 and 7 are views similar to that of Figure 1 illustrating two variants of embodiment of the installation.

The procedure will now be described according to the invention within the framework of the manufacture of tissue paper, especially cellulose wadding, which have a general shape square and are packed in stacks of tissues, each of which includes scarves with different folded motifs and packed in a plastic case.

In Figure 1 a installation comprising a coil 10 from which it is wound a width 12 of cellulose wadding.

From coil 10, width 12, which it can be a single or multiple sheet, first go through a calendering post 14 whose function is to smooth the paper and give it softness by passing it between two calendering rollers 16.

Sheet 12 then goes through a post of embossing 18 comprising for example a rubber cylinder 20 and a Engraved cylinder of steel 22, having as function the position 18 highlight different motifs on sheet 12, being able to also these motives be colored.

The embossing of motifs on sheet 12 is such that it comes to make two adjacent longitudinal bands, each of which, according to the teachings of the invention, comprises successively and alternately in length M1 and M2 handkerchiefs They have different decorative motifs.

With a view to obtaining the two adjacent bands B1 and B2, for example an engraved cylinder of the type is used illustrated in figure 2 whose cylindrical surface continues it comprises two bands recorded adjacent b1 and b2 according to the direction Transversal T. Each of these bands has an even number of recorded motives m1 and m2 successive and alternated according to the direction of the march M.

In the embodiment illustrated in the Figures 1 and 2, each band recorded b1, b2 and therefore each band of embossed paper B1, B2, thus presents the two reasons in alternation.

The design of the engraved cylinder 22 is also such that the motifs have the same circumferential length according to the direction of travel M, and a first motive m1 is aligned according to the direction of the march with a motive m2 of the other band.

After embossing and before separation, as can be seen in figure 3, a sheet 12 is thus obtained which it comprises the two adjacent bands B1 and B2, each of which it alternately comprises the handkerchiefs M1 and M2.

The installation illustrated in figure 1 it comprises a post 24, called longitudinal cutting, by the which are separated by cutting bands B1 and B2. Then, these continue parading in parallel and at the same speed over guide rollers 26 and 28, and then towards a post 30, not shown in detail in the figures, where they are made the operations of longitudinal folding of the handkerchiefs.

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The two bands then arrive at a post common 32 cutting where cross cutting is performed simultaneous scarves of the two bands.

After the cutting post 32, they are obtained two successions, depending on the direction of travel, of folded handkerchiefs M1 and M2 longitudinally and cut in length, which are presented parading successively and alternately in each row.

Each row then goes through a position 34 in the which is carried out a transversal fold to reach the formation of two rows of handkerchiefs cut and folded. Finally, they leave the installation according to a provision that allows automatically a series of P batteries of tissues, each of the which comprises an alternate stacking of handkerchiefs M1 and M2.

Then, it only remains to condition each P battery by packing means (not shown in the figures) that allow you to make packs of tissues that each one comprises a case in which a battery of handkerchiefs

By way of variant, and as can be seen in the Figure 4, it is also possible, of course, from a sheet 12 of greater width, that is to say that some are performed simultaneously adjacent adjacent bands so as to be arranged by example of four adjacent bands each comprising alternate motives

By way of variant, and as schematized in figure 5, the motifs of the bands may be displaced longitudinally from one band adjacent to another.

The choice of aligned or displaced motifs from one band to another results from a commitment, depending on the nature of each of the reasons, especially to distribute in a balanced way the engravings on the cylinder engraved with the in order to avoid, especially, untimely vibratory phenomena in The embossing post.

Of course, the invention is not limited to the case. in which each of the piles comprises some handkerchiefs belonging to two different series.

It is possible, of course, to multiply the number of different handkerchiefs from each pile to the extent that it is enough provide for each band to understand successively and alternatively some handkerchiefs presenting different decorations, for example three or Four different and successive decorations.

Products so manufactured, and especially in the case of the scarves, they are not limited, of course, to the case in that they comprise a single sheet per sheet.

On the contrary, they preferably understand several overlapping sheets.

This is the case, for example, of the variants of embodiment illustrated in figures 6 and 7.

In these figures, the installation uses a sheet or width 12 consisting of three overlapping sheets that, more beyond the calendering post 14, they are divided into a sheet single bottom S and a double top sheet D.

The upper double sheet D is dragged between the rubber cylinder 20 and the engraved cylinder 22 of the post embossing

The parts formed in relief in the sheet double at the exit of the embossing post are coated to continuation with glue for a gluing post 36 here schematized in the form of a gluing group with two cylinders and with a scraper chamber, other groups of gluing more classic, for example of the known type with three cylinders

After applying the glue, the single bottom sheet with double embossed top sheet and glued by means of a sealing cylinder 38.

The continuation of the installation represented in figure 6 it is similar to that described and represented with reference to figure 1 and thus allows stacks of tissues with two alternating motifs with embossed and glued edges.

In a variant illustrated in Figure 7, the embossing and gluing operations are reversed.

It looks like this so the glue is applied before embossing on the upper double sheet D by means of a post glued 36.

To prevent the tail from covering the entire surface from the corresponding face of the double sheet D, a cylinder is provided applicator 40 which has corresponding application areas to the peripheral areas of the tissues that will then be Engravings

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The third simple bottom sheet S is assembled with the double top sheet D at the same time as the embossing of the motifs by means of cylinders 20 and 22.

The rest of the installation, located after embossing post 18, is identical to that described and represented with reference to figure 1 and allows to make a stack of tissues with two alternating motifs with glued and embossed edges.

Claims (9)

1. Product manufacturing procedure fibrous cellulosics, such as especially handkerchiefs or rectangular or square napkins, comprising:

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the realization of a first series of embossed products (M1) that they each have a first decorative motif and they are cut to the desired format;

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the realization of at least a second series of products (M2) that they each present a second embossed decorative motif of the first and that are cut to the desired format; already continuation

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the constitution of a stack (P) that alternatively comprises first (M1) and a few seconds (M2) cut products for your subsequent conditioning by batteries comprising some products belonging to the two series;

characterized in that:

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the First (M1) and second (M2) products are made in a band continuous (B1, B2) that comprises successively and alternatively in its length a few first (M1) and a few seconds (M2) products in a embossing station comprising an engraved cylinder (22) having the function of highlighting different motifs;

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to then the band is cut (32) to obtain a succession of first (M1) and second (M2) alternate products cut to formed; Y

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to then the successive and alternate products (M1, M2) are stacked consecutively to constitute said stack (P).

2. Method according to claim 1, characterized in that the products (M1, M2) are folded (30) according to a longitudinal orientation before being cut to the format. 3. Method according to any one of the preceding claims, characterized in that the products (M1, M2) are folded (34) according to a transverse orientation after being cut to the format and before being stacked. Method according to any one of the preceding claims, characterized in that two continuous and adjacent bands (B1, B2) are performed simultaneously for the simultaneous constitution of two stacks each comprising at least two alternating products with different motifs, and because the bands Adjacent are made on a single sheet (12) that is longitudinally separated (24) into two bands before cutting (32) of the bands. 5. Method according to claim 4, characterized in that the alternating products of each of the two adjacent bands have the same length and are longitudinally aligned. Method according to any one of claims 1 to 4, characterized in that the alternating products of each of the two adjacent bands are displaced longitudinally. 7. Method according to claim 5 or 6, characterized in that each of the two bands alternatively comprises first and second products. A method according to claim 7 taken in combination with claim 5, characterized in that a first product of one of the bands is adjacent to a second product of the other band. Method according to any one of the preceding claims, characterized in that the band comprises an association of at least two individual sheets, or sheets, of superimposed cellulose wadding.