JP6333536B2 - Embossing device, roll winder device, ply machine device, and embossing method - Google Patents

Description

  The present invention relates to an embossing apparatus and its application apparatus for obtaining embossed crepe paper for use in sanitary uses such as toilet paper, paper towels, kitchen paper, tissue paper, and paper products for household use, and the embossing apparatus. It is related with the embossing method using this.

Crepe paper used for paper products for hygiene use and household use is required to be bulky and have high water absorption and is often embossed.
For example, FIG. 7 shows an embossed crepe paper production line described in Patent Documents 1 and 2. In FIG. 7, Pa, Pb, and Pc are crepe paper, 501 is a base paper roll, P is a three-ply (three-layer) crepe paper, 502 and 504 are auxiliary liquid supply units, 503 and 505 are auxiliary liquids, 506 Is a water supply unit, 507 is an embossing unit, 508 is a drying unit, 509 is a paper separating unit, and 510 is a product roll.

  In this prior art, the auxiliary liquids 503 and 505 are applied to the front and back of the crepe paper P, and the water supply unit 506 absorbs and holds water throughout the crepe paper P, and then embosses it. Thereafter, the crepe paper P is dried. The emboss thus formed has hydrogen bonds between the pulp fibers in an embossed shape, and the embossed shape is clear and excellent in bulkiness. In addition, there is a feature that the embossed shape is easily maintained and the water retention is high even at the time of water absorption after becoming a product.

JP 2007-15379 (FIG. 1 etc.) JP2009-178572A (FIG. 1 etc.)

However, the above prior art has the following problems.
(1) If the running crepe paper P is impregnated with water to make it wet, the crepe paper P may be stretched and wrinkled.
(2) If the traveling speed after wetting is made faster than the traveling speed before wetting of the crepe paper P, the generation of wrinkles can be prevented, but the embossed product is soft and has little elongation. The product may be inferior.
(3) Paper with low wet strength such as toilet paper may break during running.

  Therefore, the problem to be solved by the present invention is to solve the above-mentioned problems of the prior art, and to provide an embossing device capable of producing a flexible and high-quality embossed crepe paper having excellent operability, an application device thereof, and an embossing method Is to provide.

  In order to solve the above-mentioned problems, the present invention provides an embossing apparatus for continuously embossing crepe paper in a wet state, keeping the crepe paper traveling speed constant from the time of wetting to the time of embossing, The paper is impregnated with the treatment liquid while being superimposed on the roll surface of the embossing unit, and then the embossing is pressed and formed.

That is, the embossing device according to claim 1 is an embossing device that continuously embosses crepe paper traveling between a pair of rolls of an embossing unit.
A wetting device for impregnating said pair of crepe paper held superimposed on the surface of one of the rolls of the roll, the process liquid from the surface to the superposition site directly,
An emboss forming section for forming emboss by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A drying device for drying the crepe paper on which the embossing is formed by the embossing forming unit,
The travel speed of the crepe paper is constant from the time of wetting with the treatment liquid to the time of emboss formation by the emboss formation part.

An embossing device according to claim 2 is an embossing device that continuously embosses crepe paper traveling between a pair of rolls of an embossing unit .
A wetting device for transferring and impregnating the treatment liquid applied to the surface of one of the pair of rolls onto the crepe paper superimposed on the surface of the one of the rolls;
An emboss forming section for forming emboss by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A drying device for drying the crepe paper on which the embossing is formed by the embossing forming unit,
The travel speed of the crepe paper is constant from the time of wetting with the treatment liquid to the time of emboss formation by the emboss formation part .

The embossing apparatus according to claim 3 is the embossing apparatus according to claim 1, wherein the embossing unit includes an embossing roll, a smooth auxiliary roll having a lower hardness than the embossing roll, facing the embossing roll, And the wetting device directly impregnates the processing liquid into the crepe paper held on the surface of the auxiliary roll .

The embossing apparatus according to claim 4 is the embossing apparatus according to claim 2 , wherein the embossing unit includes an embossing roll, a smooth auxiliary roll having a lower hardness than the embossing roll, facing the embossing roll, And the wetting device transfers the treatment liquid applied to the surface of the auxiliary roll to crepe paper and impregnates it.

The embossing apparatus according to claim 5 is the embossing apparatus according to claim 1 , wherein the embossing unit is constituted by a pair of non-contacting embossing rolls, and the wetting device is a surface of one embossing roll. characterized in that to immerse the treatment liquid straight Se' the retained crepe paper surface.

An embossing apparatus according to a sixth aspect is the embossing apparatus according to the second aspect , wherein the embossing unit is constituted by a pair of embossing rolls that are not in contact with each other, and the wetting device is a surface of one embossing roll. It is characterized in that the treatment liquid coated on the surface is transferred to crepe paper and impregnated .

The embossing apparatus according to claim 7 is the embossing apparatus according to claim 5 or 6 , wherein at least one of the embossing rolls is heated, and the hot embossing roll is used as the drying apparatus. dry the crepe paper after embossing, characterized in Rukoto.

The embossing device according to claim 8 is the embossing device according to any one of claims 1 to 7, wherein the wetting device is 0.1 to 100% water per basis weight of the crepe paper. It characterized that you continuously supplied.

An embossing device according to a ninth aspect is the embossing device according to the first aspect , wherein the wetting device is a spray device.

The embossing device according to claim 10 is the embossing device according to any one of claims 1 to 9 , wherein the wetting device treats crepe paper having an underwater elongation of 5 to 70 [%]. It is characterized by being wetted by impregnating the liquid .

A roll winder apparatus according to an eleventh aspect is characterized in that the embossing apparatus according to any one of the first to tenth aspects is provided in a pre-process of a log processing section .

A ply machine apparatus according to a twelfth aspect is characterized in that the embossing apparatus according to any one of the first to tenth aspects is provided in a pre-process of a roll winding unit .

The embossing method according to claim 13 is an embossing method for continuously embossing crepe paper traveling between a pair of rolls of an embossing unit.
The crepe paper held in a superimposed manner on the surface of one of the pair of rolls is impregnated with the treatment liquid directly from the surface to the overlapped portion, or applied to the surface of one of the pair of rolls. A first step of transferring and impregnating the treated liquid to the crepe paper superimposed on the surface;
A second step of forming embossing by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A third step of drying the crepe paper on which the emboss is formed,
Running speed of the crepe paper, characterized in that it is a constant from the first step until the embossing according to the second step.

Embossing method according to claim 14, elongation in water of crepe paper used in the first step described in 請 Motomeko 13, characterized in that 5 to 70%.

In the present invention, the crepe paper is stretched by wetting. However, since the crepe paper travels at a constant speed from the time of wetting to the time of pressing the emboss, the stretch in the paper traveling direction is constrained. It promotes elongation (expansion) in the thickness direction. This elongation in the thickness direction is used as an allowance when an uneven shape is formed on the crepe paper by embossing.
According to the present invention, it is easy to form clear embossing, and even after the embossing is pressed, the stretch allowance of the crepe paper remains, and a bulky and flexible embossed crepe paper rich in elasticity can be obtained.
Also, since the crepe paper is impregnated with moisture while being held on the roll surface of the embossing unit, the travel of the crepe paper is stable, and the elongation (expansion) in the thickness direction of the paper causes the generation of wrinkles during travel It is rare to become. Further, even a crepe paper having a low wet strength is less likely to break and has excellent workability and operability. Further, by using a hot embossing roll as a drying device, there is no need to separately provide a drying device, which contributes to downsizing and cost reduction of the entire production line.

It is a schematic block diagram of the embossing apparatus which concerns on 1st Embodiment of this invention. It is a schematic block diagram of the embossing apparatus which concerns on 2nd Embodiment of this invention. It is a schematic block diagram of the embossing apparatus which concerns on 3rd Embodiment of this invention. It is a schematic block diagram of the embossing apparatus which concerns on 4th Embodiment of this invention. It is a schematic block diagram of the roll winder apparatus incorporating the embossing apparatus which concerns on 1st Embodiment of this invention. It is a schematic block diagram of the ply machine apparatus with which the embossing apparatus which concerns on 1st Embodiment of this invention was integrated. It is a block diagram which shows the production line of the embossing crepe paper described in patent document 1. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of an embossing apparatus according to a first embodiment of the present invention, which is an example in which a crepe paper on a rubber roll is impregnated with a treatment liquid by a spray apparatus.
In FIG. 1, an embossing unit E1 is composed of a hot embossing roll 1 and a rubber roll 2 as an auxiliary roll, and the crepe paper P is point A → B point → C point as both rolls 1 and 2 rotate. Wetting, embossing, and drying are performed while traveling along the S-shaped path, and embossed crepe paper P ′ is manufactured.

The hot embossing roll 1 is made of steel and has an emboss having a predetermined shape and depth on the surface (outer peripheral surface), and is heated by a known heating means to retain heat energy, so that the wet crepe paper P It also functions as a drying device that heats and dries. The rubber roll 2 disposed opposite to the hot embossing roll 1 has a smooth rubber having a lower hardness than that of the hot embossing roll 1 attached to the surface (outer peripheral surface). Since the surface of the rubber roll 2 is rich in elasticity, the crepe paper P becomes uneven as a result of pressing the crepe paper P between the hot embossing roll 1 and the rubber roll 2 against the rubber roll 2 side. It deforms according to.
A combination of a steel embossing roll and an elastic rubber roll is generally called “steel rubber embossing”.

The crepe paper P contacts the rubber roll 2 at point A in FIG. 1, is pressed by the hot embossing roll 1 and the rubber roll 2 at point B to form embossing, and is separated from the hot embossing roll 1 at point C to be embossed. It becomes the crepe paper P ′. Here, the contact site between the hot embossing roll 1 and the rubber roll 2 when embossing is formed on the crepe paper P at the point B is referred to as an embossing forming portion in the claims.
A spray device 3 serving as a wetting device is disposed on the side of the rubber roll 2. While the crepe paper P superimposed on the surface of the rubber roll 2 moves from the A point to the B point, the spray device 3. The crepe paper P is impregnated directly with the processing liquid sprayed from
In addition, you may use the coating roll 4 and the process liquid 5 which are mentioned later for the wetting apparatus instead of the spray apparatus 3. FIG.
Here, the traveling speed of the crepe paper P is constant from the time when the crepe paper P passes through the point A to the time when it passes through the point B. This is the same in the second to fourth embodiments described later.

  Although the crepe paper P impregnated with the treatment liquid is stretched, the crepe paper P has a constant traveling speed. Therefore, the elongation of the crepe paper P in the traveling direction is restricted, and this elongation is Encourage elongation in the thickness direction. This elongation in the thickness direction is used as an elongation allowance when an uneven shape is formed on the crepe paper P by embossing pressing at point B which is an emboss forming portion.

Further, in this embodiment, since the crepe paper P is wetted while running while being held on the surface of the rubber roll 2, the crepe has less wrinkling due to the wetness and has a low wet strength such as toilet paper. Even paper P is less likely to break.
Further, the wet crepe paper P can form clear embossments because the pulp fibers are plasticized by moisture, and the unevenness of the embossed unevenness is formed by elongation in the thickness direction.
The crepe paper P is dried by receiving heat energy from the hot embossing roll 1 while moving from the B point to the C point. Thus, since the hot embossing roll 1 also functions as a drying device, it is not necessary to separately install a drying device, and the entire production line can be reduced in size and cost.

Next, FIG. 2 shows a schematic configuration of an embossing apparatus according to a second embodiment of the present invention. A treatment liquid is applied to a rubber roll by a coating roll, and the treatment liquid is transferred to crepe paper. It is an example.
In FIG. 2, the structure of the embossing unit E1 is the same as that of FIG. In this embodiment, a coating roll 4 and a treatment liquid 5 as a wetting device are provided on the side of the rubber roll 2, and the treatment liquid 5 applied to the surface of the rubber roll 2 by the coating roll 4 is The crepe paper P is transferred to the crepe paper P while moving from the point A to the point B, and the crepe paper P becomes wet. That is, the treatment liquid 5 is indirectly impregnated into the crepe paper P.
Also in this embodiment, embossing is formed on the crepe paper P at point B, and the crepe paper P is dried while moving from point B to point C to become embossed crepe paper P ′.
In addition, instead of the coating roll 4 and the treatment liquid 5, a spray device 3 may be used as the wetting device.

FIG. 3 shows a schematic configuration of an embossing apparatus according to a third embodiment of the present invention. An example in which a treatment liquid is applied to a hot embossing roll by a coating roll and the treatment liquid is transferred to crepe paper. It is.
In FIG. 3, the configuration of the embossing unit E1 is the same as that in FIGS. Also, the coating roll 4 and the treatment liquid 5 as a wetting device are arranged on the side of the hot embossing roll 1. In this embodiment, the embossing is pressed immediately after the treatment liquid 5 applied to the surface of the hot embossing roll 1 by the coating roll 4 is transferred to the crepe paper P in the vicinity of the B point, and then the crepe paper P is moved from the B point. While moving to point C, it is dried to become embossed crepe paper P ′.
In addition, instead of the coating roll 4 and the treatment liquid 5, a spray device 3 may be used as the wetting device.

FIG. 4 shows a schematic configuration of an embossing apparatus according to a fourth embodiment of the present invention, and is an example in which a crepe paper on an embossing roll is impregnated with a processing liquid by a spray apparatus.
The embossing unit E2 of this embodiment is composed of a hot embossing roll 1 and a steel embossing roll 6 having no heating means. These embossing rolls 1 and 6 are so-called “steel match embossing” in which embossed irregularities mesh with each other through a very narrow gap in a non-contact state.
In addition, the spray apparatus 3 as a wetting apparatus is arrange | positioned at the side of the embossing roll 6. FIG. Instead of the spray device 3, a coating roll 4 and a treatment liquid 5 may be used.

As in FIG. 1, the crepe paper P is impregnated with the processing liquid sprayed from the spray device 3 while the crepe paper P superimposed on the surface of the embossing roll 6 moves from the A point to the B point.
The wet crepe paper P is sandwiched between the hot embossing roll 1 and the embossing roll 6 at point B to form embossing, and is dried by receiving thermal energy from the hot embossing roll 1 while moving from point B to point C. , Embossed crepe paper P ′.
Further, in the “steel match embossing” shown in FIG. 4, as in FIGS. 2 and 3, it is also possible to apply the treatment liquid 5 to the embossing roll and transfer the treatment liquid 5 to the crepe paper.

Next, FIG. 5 shows an example in which the embossing apparatus of the first embodiment is incorporated into a roll winder apparatus that processes a roll-shaped product such as toilet paper or towel paper.
In FIG. 5, reference numeral 101 denotes an embossing unit provided with two sets of embossing apparatuses of the first embodiment, and simultaneously embosses two crepe papers Pa and Pb supplied from base paper rolls 401 and 402. It is possible.

  A log processing unit 200 is arranged in the next process of the embossing unit 101, and the crepe paper Pa and Pb embossed one by one is wound up in two layers, and a winding roll 201, a bed roll 202, and a nip roll 203 are wound. It is processed into a log by the operation of. Reference numeral 204 denotes a log being wound, and 205 denotes a log that has been wound.

FIG. 6 shows an example in which the embossing apparatus of the first embodiment is incorporated in a ply machine apparatus. Also in this example, it is possible to simultaneously emboss two crepe papers Pa and Pb by the embossing unit 102 including two sets of the embossing apparatuses of the first embodiment.
A roll winding unit 300 is disposed in the next process of the embossing unit 102, and the crepe paper Pa and Pb embossed one by one is wound up into two sheets by the operation of the slitter 301 or the like, and tissue paper or the like. It is processed into a roll 302 having a form according to the product.

  5 and 6, the embossing device of the first embodiment is used as the embossing portions 101 and 102, but the embossing devices of the second to fourth embodiments are used instead of the first embodiment. May be.

Next, characteristics of crepe paper and processing liquid used in each embodiment, processing conditions, and the like will be described.
[Crepe paper]
The basis weight of the crepe paper is preferably 6 to 60 [g / m ² ], more preferably 9 to 30 [g / m ² ], and particularly preferably 10 to 25 [g / m ² ]. If the basis weight is low, paper making is difficult, and if the basis weight is too high, the strength becomes too strong, making it unsuitable as sanitary paper or household paper. The raw material for the crepe paper is preferably wood pulp that can generate hydrogen bonds by drying.

The underwater elongation of the crepe paper is preferably 5 to 70 [%]. If the underwater elongation is 5 [%] or less, it is easy to break during traveling, has little elongation in the thickness direction when wet, and breaks easily due to embossing pressure. Moreover, it is difficult to make paper when the underwater elongation is 70% or more.
In addition, the more preferable range of elongation in water is 10-50 [%], Most preferably, it is 12-30 [%]. Within this range, good running properties of the crepe paper can be obtained, and clear and flexible embossing can be formed.

Here, the underwater elongation of the crepe paper was measured by the following method.
(1) Put water in the immersion container.
(2) Cut one sample 100 [mm] in the vertical direction and 25 [mm] in the horizontal direction of the paper.
(3) The sample is immersed in the water of the immersion container.
(4) After 60 seconds, the length of the sample in the vertical direction is measured.
The measurement formula of the elongation in water is as shown in the following formula 1.
[Formula 1]
Underwater elongation [%]: {(L2-L1) / L1} × 100
L1: Vertical length of the sample before immersion L2: Vertical length of the sample after immersion

[Treatment solution]
The treatment liquid for wetting the crepe paper can contain various moisturizing ingredients, oils, surfactants and the like in addition to water or water in order to improve the softness of the product.

[Wetting treatment]
For the wetting, 0.1 to 100% of the treatment liquid per basis weight of the crepe paper is continuously impregnated. The treatment liquid is preferably impregnated with 0.5 to 50 [%], more preferably 1 to 20 [%].
The treatment liquid is impregnated so as to be uniform in the width direction of the crepe paper. The impregnation method can be applied directly to the surface of the crepe paper, or applied to a roll of the embossing unit (heat embossing roll 1, embossing roll 6, rubber roll 2) and transferred to the crepe paper.
As described above, the spray device 3 and the coating roll 4 are used for applying the treatment liquid. In addition, as the spray device 3, a rotor type spray device is preferable because there is little scattering of the processing liquid to the outside of the system. As the coating roll 4, a gravure roll, a flexo roll, or the like can be used.

[Dry]
It is preferable that the crepe paper pressed with the emboss is dried quickly. For this reason, it is preferable to use the hot embossing roll 1 which can be dried immediately after embossing pressing.
Since the crepe paper contacts the surface of the hot embossing roll 1 while maintaining the shape of the emboss, the drying efficiency is high. Since the drying efficiency increases as the time for the crepe paper to contact the hot embossing roll 1 is increased, it is preferable that the crepe paper is in contact over ½ or more of the circumference of the hot embossing roll 1. More preferably, the contact is performed over 3 or more.

In the drying treatment, the surface temperature of the hot embossing roll 1 and the heat energy flowing into the crepe paper are adjusted so that the moisture impregnated in the crepe paper is reduced by 60 [%] or more, preferably 80 [%] or more. When the water reduction rate is 60% or less, the embossing is not clearly defined.
The surface temperature of the hot embossing roll 1 is preferably 50 to 150 [° C.], more preferably 70 to 120 [° C.]. When the surface temperature is lower than 50 [° C.], the drying efficiency is inferior. When the surface temperature is 150 [° C.] or higher, the crepe paper may be deteriorated by heat.

[Running speed]
The travel speed of the crepe paper is defined by the time from when the crepe paper becomes wet until the emboss is pressed. The required time is preferably 10 seconds or less, more preferably 3 seconds or less, and particularly preferably 1 second or less. After 10 seconds or more from the wetting, the crepe paper is likely to be wrinkled and more likely to break.
The travel speed of the crepe paper is constant from the time of wetting to the time of pressing the emboss.

[Emboss shape]
When the emboss shape formed on the crepe paper is a dot-like emboss pattern, the height difference of the emboss is preferably 0.05 to 3.00 [mm], and the number of points per unit area is preferably 4 to 200 [pieces / cm ² ]. More preferably, the height difference of the emboss is 0.1 to 1.00 [mm], the number of points per unit area is 10 to 150 [piece / cm ² ], and particularly preferably, the height difference of the emboss is 0.2. ˜0.70 [mm], and the number of points per unit area is 20 to 100 [pieces / cm ² ]. Further, the embossed shape may be a design pattern having a design property.

  The embossing apparatus and the embossing method according to the present invention can be used for embossing in various paper products for hygiene use and household use.

1: hot embossing roll 2: rubber roll 3: spraying device 4: roll coating device 5: treatment liquid 6: embossing roll 101, 102: embossing processing unit 200: log processing unit 201: winding roll 202: bet roll 203: nip roll 204: Log during winding 205: Log taken up 300: Roll winding unit 301: Slitter 302: Roll 401, 402: Base paper roll P, Pa, Pb: Crepe paper P ′: Embossed crepe paper E1, E2 : Embossed unit

Claims (14)

In an embossing device that continuously embosses crepe paper running between a pair of rolls of an embossing unit,
A wetting device for impregnating a treatment liquid directly from the surface of the overlapped portion of the crepe paper held on the surface of one of the pair of rolls;
An emboss forming section for forming emboss by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A drying device for drying the crepe paper on which the embossing is formed by the embossing forming unit,
An embossing apparatus characterized in that the travel speed of the crepe paper is constant from the time of wetting with the treatment liquid to the time of embossing by the embossing forming part. In an embossing device that continuously embosses crepe paper running between a pair of rolls of an embossing unit,
A wetting device for transferring and impregnating the treatment liquid applied to the surface of one of the pair of rolls onto the crepe paper superimposed on the surface of the one of the rolls;
An emboss forming section for forming emboss by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A drying device for drying the crepe paper on which the embossing is formed by the embossing forming unit,
An embossing apparatus characterized in that the travel speed of the crepe paper is constant from the time of wetting with the treatment liquid to the time of embossing by the embossing forming part. In the embossing apparatus of Claim 1,
The embossing unit is composed of an embossing roll and a smooth auxiliary roll having a lower hardness than the embossing roll opposite to the embossing roll,
The embossing apparatus, wherein the wetting device impregnates the crepe paper held on the surface of the auxiliary roll directly with the treatment liquid. In the embossing apparatus of Claim 2,
The embossing unit is composed of an embossing roll and a smooth auxiliary roll having a lower hardness than the embossing roll opposite to the embossing roll,
The embossing apparatus is characterized in that the wetting device transfers the impregnating treatment liquid applied to the surface of the auxiliary roll onto crepe paper. In the embossing apparatus of Claim 1,
The embossing unit is composed of a pair of non-contacting embossing rolls,
An embossing apparatus characterized in that the wetting device impregnates the treatment liquid directly on the surface of the crepe paper held on the surface of one embossing roll. In the embossing apparatus of Claim 2,
The embossing unit is composed of a pair of non-contacting embossing rolls,
An embossing apparatus, wherein the wetting device transfers the impregnating treatment liquid applied to the surface of one embossing roll to crepe paper and impregnates it. The embossing device according to claim 5 or 6,
An embossing apparatus, wherein at least one of the embossing rolls is a heated hot embossing roll, and the crepe paper after embossing is dried using the hot embossing roll as the drying apparatus. In the embossing apparatus as described in any one of Claims 1-7,
An embossing apparatus, wherein the wetting device continuously supplies 0.1 to 100% of water per basis weight of the crepe paper. In the embossing apparatus of Claim 1 ,
An embossing device, wherein the wetting device is a spray device. In the embossing apparatus as described in any one of Claims 1-9,
The embossing apparatus is characterized in that the wetting apparatus wets a crepe paper having an underwater elongation of 5 to 70% by impregnating with a treatment liquid.   A roll winder device comprising the embossing device according to any one of claims 1 to 10 in a pre-process of a log processing unit.   A ply machine apparatus comprising the embossing apparatus according to any one of claims 1 to 10 in a pre-process of a roll winding unit. In an embossing method for continuously embossing crepe paper running between a pair of rolls of an embossing unit,
The crepe paper held in a superimposed manner on the surface of one of the pair of rolls is impregnated with the treatment liquid directly from the surface to the overlapped portion, or applied to the surface of one of the pair of rolls. A first step of transferring and impregnating the treated liquid to the crepe paper superimposed on the surface;
A second step of forming embossing by pressing the crepe paper wetted by the treatment liquid with the pair of rolls;
A third step of drying the crepe paper on which the emboss is formed,
An embossing method, wherein a travel speed of the crepe paper is constant from the first step to the emboss formation time in the second step. Embossing method elongation in water of crepe paper used in the first step according to claim 13, characterized in 5-70%] der Rukoto.

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