CN105877929A - A processing device for pre-applied diapers and a method for processing pre-applied diapers - Google Patents

Abstract

The invention discloses a paper diaper front sticker processing device which comprises at least one group of rolling mechanisms, wherein each rolling mechanism comprises two circular rolling rollers, the rotating directions of the two rolling rollers are opposite, each paper diaper front sticker comprises a substrate layer and a fiber layer attached to the surface of the substrate layer, one surface of each paper diaper front sticker is upward and the other surface of each paper diaper front sticker is downward, the paper diapers front sticker is fed from one side and discharged from the other side through a space between the two rolling rollers, and the outer walls of the rolling rollers are provided with rolling grooves which are used for respectively rolling the substrate layer and the fiber layer attached to the paper diaper front sticker. The diaper front sticker processing device adopting the technical scheme is particularly suitable for processing the diaper front stickers with double-layer structures. The treated paper diaper is adhered with the front layer, the fiber layer is fluffy, and the adhesive force between the fiber layer and the ejection hook is larger. The hardness of the hot-pressing area after treatment is damaged, and the front paste of the paper diaper can achieve the soft hand feeling of the ready-made cloth. The invention also discloses a paper diaper front-pasting treatment method.

Description

A processing device for pre-applied diapers and a method for processing pre-applied diapers

technical field

The invention relates to a Velcro production machine, in particular to a processing device for front-attachment of diapers.

Background technique

Disposable diapers are usually one-piece. When worn on the user’s body, the two ends of the diaper located in the front and rear of the body need to be placed on the sides of the two ends of the diaper, commonly known as "waist stickers". are bonded to secure the diaper to the user's body. The traditional adhesive sheet is a self-adhesive design, but it is gradually eliminated due to its disadvantages such as inconvenient way of pasting and not conducive to repeated use. Instead, it is a Velcro tape with a hook structure that can be pasted repeatedly and can provide sufficient lateral sticking force, that is, Velcro.

The Velcro in diapers generally adopts the method of matching the injection hook and the front sticker. At present, diaper front sticker materials are divided into two categories. The market share of air-through non-woven substrates is 20%, which is characterized by softness and fluffy feeling. The market share of pp spunbonded non-woven substrates is 80%. Single-layer material structure is the mainstream.

As shown in Figures 1 and 2, the Chinese patent ZL201320461413.0 owned by the applicant provides a diaper front sticker, including a substrate layer 11 and a fiber layer 12, and the thermoplastic polymer fiber layer 12 is heat-sealed to the surface of the substrate layer 11. Due to the double-layer material structure, the continuous filament fiber layer of the surface layer has the characteristics of fused polymer film substrate layer without glue bonding, which is light and thin, environmentally friendly, comfortable to the touch, firmly connected with the hook body and low in cost.

In the above-mentioned patent, the applicant has developed a front sticker of a filament fiber diaper. Filament fiber diaper front sticker is a double-layer material thermally compounded product. Its advantage is that the surface filament is thermoformed to produce a three-dimensional fiber layer 12, and then the substrate layer 1 is thermally compounded online to form an excellent diaper front. Post products. The three-dimensional filament fiber layer on the surface has superior performance in sticking and hooking force. The product has been widely recognized by the market.

Since the product was put on the market, the applicant still felt that the product had certain flaws and was not perfect, mainly due to the feeling of stiffness of the heat-composite, fused and pressed mesh interlacing strips.

And all existing diaper front stickers including the diaper front sticker with the above-mentioned composite structure, especially the double-layered diaper front stickers, have the following deficiencies:

(1) Due to the relatively dense fiber layer, the adhesion between the injection hook and the injection hook is not enough, which makes the diapers difficult to fasten and easy to fall off;

(2) The fiber layer and the substrate layer are generally integrated by hot pressing, and the hot pressing area is generally hard, which makes the diaper uncomfortable to wear;

(3), the bonded fiber layer and the substrate layer have poor air permeability.

Contents of the invention

An object of the present invention is to provide a diaper front-applied processing device to solve many shortcomings of the pre-applied diaper produced by the existing technology and equipment. Another object of the present invention is to provide a method for treating the front sticker of diapers.

According to one aspect of the present invention, a diaper pre-applied processing device is provided, including at least one set of rolling mechanism, the rolling mechanism includes two circular rolling rollers, the two rolling rollers rotate in opposite directions, and the diaper front The sticker includes the backing layer and the fiber layer attached to the surface of the backing layer. The front side of the diaper is up and the other side is down. It is fed from one side, passes between two rollers, and is discharged from the other side, and the outer wall of the roller is rolled. A rolling groove is provided, and the rolling groove is used for rolling the substrate layer and the fiber layer of the diaper front sticker respectively.

In some embodiments, there are at least two groups of rolling mechanisms, and the two rolling rollers of each group of rolling mechanisms are arranged perpendicular to the arrangement direction of the rolling mechanisms, and the diaper front stickers are fed from above the rolling mechanisms.

In some embodiments, the rolling rollers include longitudinal rolling rollers and transverse rolling rollers, the outer wall of the longitudinal rolling rollers is provided with axial rolling grooves, the outer wall of the transverse rolling rollers is provided with radial rolling grooves, two The longitudinal rolling rollers form the first rolling mechanism, and the two transverse rolling rollers form the second rolling mechanism, and the first rolling mechanism and the second rolling mechanism are arranged at intervals.

In some embodiments, the distance between two rolling rollers of the same rolling mechanism is 2/3 to 3/4 of the thickness of the front sticker of the diaper. In this way, it is possible to avoid excessive rolling of the rolling roller to the base layer and the fiber layer, resulting in damage to the front-applied structure of the diaper.

In some embodiments, end wheels that rotate synchronously with the rolling rollers are provided at both ends of the rolling rollers, and the outer diameter of the end wheels is larger than that of the rolling rollers.

In some embodiments, the rolling rollers are simultaneously provided with multiple rolling grooves in different directions.

In some embodiments, the rolling rollers are provided with rolling grooves in two different directions at the same time, and the rolling grooves in two different directions are intersected.

In some embodiments, multiple rolling grooves in different directions are arranged at intervals.

In some embodiments, two rolling rollers with rolling grooves in different directions at intervals form a rolling mechanism. In the rolling mechanism, the directions of the rolling grooves at the corresponding positions of the two rolling rollers are different.

The diaper front-applied processing device adopting the above technical scheme is especially suitable for processing the double-layered diaper front-applied. Simulate the process of rubbing clothes by hand, and carry out transverse damage and longitudinal damage to the mesh fusing and pressing line support, so that the mesh fusing and pressing line support breaks, thereby destroying its force function. After treatment, the fiber layer of the diaper front sticker is relatively fluffy, and the adhesion between the injection hook and the injection hook is stronger, and the diaper is easy to fasten and not easy to fall off. After the treatment, the hardness of the hot-pressed area is destroyed, and the front sticker of the diaper can achieve the soft feel of the cloth of the garment. Moreover, after treatment, a part of the bonding structure between the fiber layer and the substrate layer is destroyed, so that the front sticker of the diaper is breathable. Good performance and more comfortable to wear.

According to another aspect of the present invention, a method for treating the front sticker of diapers is provided, using the above-mentioned device for treating the front sticker of diapers to perform one or more treatments on the front stickers of double-layered diapers. In this way, the process of rubbing clothes by hand can be simulated, and the reciprocating physical rubbing of the front sticker of the diaper can be performed to make the mesh fusing line support more fully broken.

Description of drawings

Fig. 1 is a structural schematic diagram of an existing diaper front sticker.

Fig. 2 is a cross-sectional view of the front sticker of the diaper shown in Fig. 1 .

Fig. 3 is a schematic structural view of a processing device for front-applied diapers according to an embodiment of the present invention.

Fig. 4 is a schematic side view of the diaper front-applying processing device shown in Fig. 3 .

FIG. 5 is an enlarged view of the portion indicated by A in FIG. 4 .

FIG. 6 is a schematic structural view of the first rolling roller shown in FIG. 5 .

Fig. 7 is a schematic structural view of the second rolling roller shown in Fig. 5 .

Fig. 8 is a schematic structural view of the rolling roller of the diaper front-applying processing device according to another embodiment of the present invention.

Fig. 9 is a schematic structural view of the rolling roller of the diaper front-applying processing device according to another embodiment of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Example 1

Fig. 3 to Fig. 7 schematically show a diaper front-applied processing device 2 according to an embodiment of the present invention.

As shown in the figure, the diaper front sticker processing device 2 includes five sets of rolling mechanisms.

Wherein, the rolling mechanism is a first rolling mechanism 21 and a second rolling mechanism 22 . The first rolling mechanism 21 and the second rolling mechanism 22 are arranged at intervals.

The first rolling mechanism 21 is made up of two longitudinal rolling rollers 211 . The outer wall of the longitudinal rolling roller 211 is provided with axial rolling grooves. The directions of rotation of the two longitudinal lamination rollers 211 are opposite.

The second rolling mechanism 22 is composed of two transverse rolling rollers 221, and the outer wall of the transverse rolling rollers 221 is provided with radial rolling grooves. The directions of rotation of the two transverse rolling rollers 221 are opposite.

The two rolling rollers of each group of rolling mechanism are arranged perpendicular to the arrangement direction of the rolling mechanism.

The diaper front sticker 1 includes a backing layer 11 and a fiber layer 12 attached to the surface of the backing layer 11 .

The front side of the diaper is up and the other side is down. The material is fed from above, passes between two rolling rollers, and is discharged from the other side. The rolling groove performs rolling treatment on the substrate layer and fiber layer of the diaper front.

In this embodiment, the distance between the two rolling rollers of the same rolling mechanism is 2/3 of the thickness of the front sticker of the diaper. Therefore, it is possible to avoid the excessive rolling of the rolling rollers on the substrate layer and the fiber layer, causing the diapers The front sticker structure is destroyed.

In other examples, the distance between the two rolling rollers of the same rolling mechanism can also be 3/4 of the thickness of the front sticker of the diaper.

In this embodiment, the two ends of the longitudinal rolling roller 211 and the transverse rolling roller 221 are respectively provided with end wheels 3 which rotate synchronously therewith.

The outer diameter of the end wheel 3 is larger than the corresponding rolling roller.

The above-mentioned diaper front sticker processing device is used to process the double-layered diaper front sticker 1 once or multiple times. In this way, the process of rubbing clothes by hand can be simulated, and the reciprocating physical rubbing of the front sticker of the diaper can be performed to make the mesh fusing line support more fully broken.

The diaper front sticker processing device is especially suitable for processing double-layered diaper front stickers. The fiber layer of the treated diaper front sticker 1 is relatively fluffy, and the adhesive force with the injection hook is stronger, and the diaper is easy to fasten and not easy to fall off. After the treatment, the hardness of the hot-pressed area is destroyed, and the diaper front sticker 1 can achieve the soft feel of the cloth of the garment. Moreover, after the treatment, a part of the bonding structure between the fiber layer 12 and the substrate layer 11 is destroyed to a certain extent. , so that the front sticker 1 of the diaper has good air permeability and is more comfortable to wear

Example 2

Fig. 8 schematically shows the lamination roller 231 of the diaper front-applying processing device according to another embodiment of the present invention. As shown in the figure, the difference from Embodiment 1 is that the lamination roller 231 is provided with lamination grooves in two different directions at the same time, and the lamination grooves in two different directions are intersected. Two rolling rollers 231 form a rolling mechanism.

Example 3

Fig. 9 schematically shows the lamination roller 241 of the diaper front-applying processing device according to another embodiment of the present invention. As shown in the figure, the difference from Embodiment 1 is that the rolling roller 241 is provided with multiple rolling grooves in different directions at the same time, and the multiple rolling grooves in different directions are arranged at intervals. Two rolling rollers 241 form a rolling mechanism. In the rolling mechanism, the directions of the rolling grooves at the corresponding positions of the two rolling rollers 241 are different.

What have been described above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (10)

1. paste processing means before diaper, it is characterised in that include least one set rolling body, described Rolling body includes two circular milling rollers, and it is in opposite direction that described two milling rollers rotate, and paper is urinated Before trousers, patch includes substrate layer and fits in the fibrous layer on described substrate layer surface, pastes one before described diaper Face down towards upper one, side feed, between described two milling rollers, from opposite side discharging, Described milling roller outer wall is provided with and rolls groove, described in roll groove to before described diaper patch substrate layer and fibre Dimension layer carries out rolling process respectively.

Processing means is pasted, it is characterised in that described stone roller before diaper the most according to claim 1 Press mechanism is at least two groups, often organizes two described milling rollers of described rolling body and described rolling body Orientation be vertically arranged, paste before described diaper by described rolling body top feed.

Processing means is pasted, it is characterised in that described stone roller before diaper the most according to claim 2 Pressure roller includes that longitudinal rolling roller and horizontal milling roller, described longitudinal rolling roller outer wall are provided with axial rolling Groove, described horizontal milling roller outer wall be provided with radially roll groove, two described longitudinal rolling roller compositions the One rolling body, two described horizontal milling rollers form the second rolling body, described first rolling body And described second rolling body interval arrange.

Processing means is pasted, it is characterised in that same institute before diaper the most according to claim 1 Stating the distance between two described milling rollers of rolling body is before described diaper the 2/3 of the thickness of patch To 3/4.

Processing means is pasted, it is characterised in that described stone roller before diaper the most according to claim 1 Pressure roller two ends are additionally provided with the end wheel with described milling roller synchronous axial system, and the external diameter of described end wheel is more than described Milling roller.

Processing means is pasted, it is characterised in that described stone roller before diaper the most according to claim 1 What pressure roller was simultaneously provided with multiple different directions rolls groove.

Processing means is pasted, it is characterised in that described stone roller before diaper the most according to claim 6 Pressure roller is simultaneously provided with the groove that rolls of two kinds of different directions, and the groove intersection that rolls of the two different directions sets Put.

Processing means is pasted, it is characterised in that described many before diaper the most according to claim 6 The groove interval of rolling planting different directions is arranged.

Processing means is pasted, it is characterised in that two institutes before diaper the most according to claim 8 State milling roller one the described rolling body of composition rolling groove being arranged at intervals with different directions, described In rolling body, the direction rolling groove of the correspondence position of two described milling rollers is different.

10. paste processing method before a diaper, it is characterised in that use claim 1 to 8 times Before one described diaper paste processing means, to exchange premium row before double-deck diaper once or Repeatedly process.