CN108357183B - Perforated three-dimensional sheet with double-sided protrusions and forming method thereof - Google Patents
Perforated three-dimensional sheet with double-sided protrusions and forming method thereof Download PDFInfo
- Publication number
- CN108357183B CN108357183B CN201810386158.5A CN201810386158A CN108357183B CN 108357183 B CN108357183 B CN 108357183B CN 201810386158 A CN201810386158 A CN 201810386158A CN 108357183 B CN108357183 B CN 108357183B
- Authority
- CN
- China
- Prior art keywords
- sheet
- protrusions
- dimensional
- bulges
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
- B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/042—Punching
Abstract
The invention discloses a perforated three-dimensional sheet with double-sided bulges and a forming method thereof, wherein the three-dimensional sheet is formed by compounding two or more layers of sheets, the three-dimensional sheet comprises a first sheet positioned above and a second sheet positioned below, and the surface of the three-dimensional sheet is provided with the double-sided bulges and the perforations; the double-sided bulges consist of upper bulges on the first sheet and lower bulges on the second sheet, the upper bulges and the lower bulges are hollow bulges, the bulge directions are opposite, and the bottom parts of the bulges are mutually compounded and overlapped; the opening is positioned between the adjacent bulges and penetrates through the three-dimensional sheet material, and the opening is funnel-shaped; since the upper protrusions and the lower protrusions are hollow structures, that is, the upper protrusions contacting the skin and the lower protrusions contacting the absorbent core are completely separated at the protrusion portions, it is effectively prevented that the body fluid returns to the upper protrusion surface contacting the skin after the absorption of the absorbent layer at the protrusion portions of the sheet, thereby improving the drying performance.
Description
Technical Field
The invention relates to a sheet material used in the field of sanitary articles and medical articles and a forming method thereof, in particular to a perforated three-dimensional sheet material with double-sided bulges and a forming method thereof.
Background
In the fields of sanitary products, medical products and the like, the embossed/punched three-dimensional non-woven fabric has a three-dimensional structure, is small in contact area with skin, and has a leading advantage in the market because liquid can permeate into the holes, so that the embossed/punched three-dimensional non-woven fabric is widely applied to the surface layers of sanitary towels and paper diapers.
The invention has the patent application number of 201410115950.9 and is named as a three-dimensional non-woven fabric with an open pore structure, raised areas, recessed areas and the open pore structure are distributed on the three-dimensional non-woven fabric, and fiber density gradient is formed from the raised areas to the recessed areas, namely, the fiber density of the side edge of the transition from the raised areas to the recessed areas is higher than that of the tops of the raised areas.
However, after the existing embossed punched three-dimensional non-woven fabric is rolled into a coiled material and made into a finished product, certain difference exists in the retention of the raised 3D effect, the raised 3D effect of some areas is obvious, the loss of the 3D effect of the raised areas is serious, the attractiveness of the embossed punched three-dimensional non-woven fabric is seriously influenced, and the air permeability and the liquid permeability of the material can be influenced in the areas with serious 3D effect loss; and only the surface is provided with bulges, the three-dimensional thickness increased by the material is not obvious, and the effects of improving fluffy softness, reducing residues and isolating liquid from back seepage cannot be effectively achieved.
Disclosure of Invention
The invention aims to provide an open-pore three-dimensional sheet with double-sided bulges and a forming method thereof, which can effectively prevent the surface bulges of an embossed and punched three-dimensional non-woven fabric from losing in the rolling or using process and further improve the three-dimensional thickness and the air permeability of the material.
In order to achieve the above purpose, the solution of the invention is:
the three-dimensional sheet material with the double-sided bulges is formed by compounding two or more layers of sheet materials, comprises a first sheet material positioned above and a second sheet material positioned below, and the surface of the three-dimensional sheet material is provided with the double-sided bulges and holes; the double-sided bulges consist of upper bulges on the first sheet and lower bulges on the second sheet, the upper bulges and the lower bulges are hollow bulges, the bulge directions are opposite, and the bottom parts of the bulges are mutually compounded and overlapped; the openings are positioned between the adjacent bulges and penetrate through the three-dimensional sheet; the composite overlapping plane of the upper bulge and the lower bulge and the upper opening plane of the opening are the same plane.
The opening is funnel-shaped.
The sheet is any one of a hot air non-woven fabric sheet, a spun-bonded non-woven fabric sheet, a hot rolled non-woven fabric sheet, a spunlace non-woven fabric sheet and a PE perforated film sheet.
The bonding mode between the sheets is any one of thermal bonding, ultrasonic bonding and adhesive bonding.
The height of the upper protrusion is the same as that of the lower protrusion.
The height of the lower bulge is larger than that of the opening.
The first sheet has a hydrophilicity lower than that of the second sheet.
And a third sheet is arranged between the first sheet and the second sheet, compositely overlapped with the first sheet and the second sheet respectively, and provided with an opening with the same shape as the opening.
The third sheet has an open-cell structure in a region not combined with the first and second sheets.
A forming method of an open-hole three-dimensional sheet with double-sided protrusions comprises the following steps: embossing and perforating a first sheet by a pair of mutually meshed concave-convex rollers, wherein at the temperature of 70-140 ℃, the protrusions on the first convex roller form upper protrusions on the surface of the first sheet, and the perforating needles on the first concave roller pierce the first sheet to form openings and tightly attach the first sheet to the first concave roller; simultaneously, embossing and punching the second sheet by a pair of mutually meshed concave-convex rollers, wherein at the temperature of 70-140 ℃, the protrusions on the second convex roller form lower protrusions on the surface of the second sheet, and the punching needles on the second convex roller pierce the second sheet to form holes so as to closely attach the second sheet to the second concave roller; the first sheet and the second sheet which are provided with the protrusions and the holes are mutually compounded together between the first concave roller and the second concave roller through the matching transmission of the first concave roller and the second concave roller, and the compound overlapping holes are formed under the action of the perforating needles on the first concave roller, so that the three-dimensional perforated sheet with the protrusions on the two sides is formed.
The first sheet and the second sheet forming the protrusions and the openings are sized before entering between the first concave roller and the second concave roller.
And (3) adding a third sheet to the middle of the first sheet and the second sheet when the first sheet and the second sheet which are provided with the protrusions and the holes enter between the first concave roller and the second concave roller, and performing composite overlapping hole opening.
The third sheet is subjected to hole opening forming before entering between the first concave roller and the second concave roller.
After the scheme is adopted, the opening three-dimensional sheet with the protrusions on the two sides is formed in the opening compounding mode, the three-dimensional thickness of the sheet is obviously increased due to the fact that the protrusions are arranged on the two sides of the three-dimensional sheet, the fluffiness of the sheet is improved, the sheet is more comfortable and elastic when the sheet is used for a surface layer of a sanitary product, the upper protrusions and the lower protrusions are of hollow structures, namely the upper protrusions contacting with the skin and the lower protrusions contacting with the absorption core are completely separated at the protrusions, the body fluid of the protrusions of the sheet is effectively prevented from returning to the upper protrusion surface contacting with the skin again after being absorbed by the absorption layer, and the dry and comfortable performance is improved. Meanwhile, a hollow structure is formed between the upper bulge and the lower bulge, an airflow storage space is effectively formed, the bulge part can be prevented from being extruded, the internal and external circulation of airflow is also provided, the air permeability of the sheet is increased, and the feeling of dampness and stuffiness is reduced.
Drawings
FIG. 1 is a schematic diagram of the forming of an apertured three-dimensional sheet with protrusions on both sides according to example 1 of the present invention;
FIG. 2 is a schematic view showing the engagement of a first male roller and a first female roller in example 1 of the present invention;
FIG. 3 is a schematic view showing the engagement of a second male roller and a second female roller in example 1 of the present invention;
FIG. 4 is a schematic view showing the engagement of a first concave roller and a second concave roller in embodiment 1 of the present invention;
FIG. 5 is a top view of an apertured three-dimensional sheet having protrusions on both sides according to example 1 of the present invention;
FIG. 6 is a sectional view of O-O' in example 1 of the present invention;
FIG. 7 is a schematic diagram of the formation of an apertured three-dimensional sheet having protrusions on both sides according to example 2 of the present invention;
FIG. 8 is a top view of an apertured three-dimensional sheet having protrusions on both sides according to example 2 of the present invention;
FIG. 9 is a cross-sectional view of P-P' in example 2 of the present invention;
FIG. 10 is a schematic view of the formation of an apertured three-dimensional sheet having protrusions on both sides according to example 3 of the present invention;
FIG. 11 is a top view of an apertured three-dimensional sheet having protrusions on both sides according to example 3 of the present invention;
FIG. 12 is a cross-sectional view of Q-Q' in example 3 of the present invention;
FIG. 13 is a schematic view of the formation of an apertured three-dimensional sheet having protrusions on both sides according to example 4 of the present invention;
FIG. 14 is a top view of an apertured three-dimensional sheet having protrusions on both sides according to example 4 of the present invention;
FIG. 15 is a sectional view of R-R' in example 4 of the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
Example 1
As shown in fig. 1 to 6, a first sheet 1 is embossed and holed by a pair of concave-convex rollers engaged with each other, at 70 to 140 ℃, the protrusions F of the first convex roller a1 form upper protrusions a1 on the surface of the first sheet 1, and the perforating needle E of the first concave roller B1 pierces the first sheet 1 to form a hole and closely attach the first sheet 1 to the first concave roller B1, wherein: the first sheet material 1 is a 20gsm hydrophilic hot-air non-woven fabric;
at the same time, the second sheet material 2 is also embossed and punched by a pair of concave-convex rollers engaged with each other, at 70-140 ℃, the protrusions H on the second convex roller D1 form lower protrusions a 1' on the surface of the second sheet material 2, and the punching needles G on the second convex roller D1 pierce the second sheet material 2 to form openings, so as to closely attach the second sheet material 2 to the second concave roller C1, wherein: the second sheet material 2 is 20gsm hydrophilic hot-air non-woven fabric;
the first concave roller B1 and the second concave roller C1 are in matched transmission, the first sheet material 1 and the second sheet material 2 which are used for forming the protrusions and the holes are heated between the first concave roller B1 and the second concave roller C1, resin on the surfaces of fibers is melted, the composite overlapping hole forming process is carried out under the action of the punching needle E on the first concave roller B1, and meanwhile, the first sheet material 1 and the second sheet material 2 are mutually combined, so that the three-dimensional hole forming sheet material 12 with the protrusions on two sides is formed.
The three-dimensional sheet material 12 in the embodiment is formed by compounding a first sheet material 1 and a second sheet material 2, and the surface of the three-dimensional sheet material is provided with double-sided bulges and holes b 1; the double-sided protrusions are composed of upper protrusions a1 on the first sheet 1 and lower protrusions a1 'on the second sheet 2, the upper protrusions a1 and the lower protrusions a 1' are hollow protrusions, the protrusion directions are opposite, the bottoms of the protrusions are mutually compounded and overlapped, and the protrusion heights are the same; the holes b1 are positioned between the adjacent bulges and penetrate through the three-dimensional sheet material 12, and the holes b1 are funnel-shaped; the composite overlapping plane of the upper protrusion a1 and the lower protrusion a 1' is the same plane as the upper opening plane of the funnel-shaped opening b 1.
Since the three-dimensional sheet 12 is formed by thermally compounding the first sheet 1 and the second sheet 2 at the opening, and the three-dimensional sheet 12 has double-sided protrusions, the three-dimensional thickness of the three-dimensional sheet 12 is significantly increased, thereby improving the bulkiness of the sheet, making it more comfortable and elastic when used in a topsheet of a sanitary product, and the upper protrusion a1 and the lower protrusion a1 'are hollow structures, i.e., the upper protrusion a1 contacting the skin and the lower protrusion a 1' contacting the absorbent core are completely separated at the protrusion, which effectively prevents the body fluid at the protrusion portion of the sheet from returning to the surface of the upper protrusion a1 contacting the skin after being absorbed by the absorbent layer, whereas if the protrusion height of the lower protrusion a1 'is greater than the height of the funnel-shaped opening b1, the opening portion does not contact the absorbent core, only the lower protrusion a 1' contacts the absorbent core, the hole portion does not easily return the body fluid from the hole portion to the surface of the sheet after the body fluid is delivered to the absorbent core, and even if the hole portion has a body fluid return surface, the body does not come into contact due to the presence of the upper protrusions a1, so that the dryness of the sheet can be greatly improved.
Example 2
As shown in fig. 7 to 9, the first sheet 3 is embossed and holed by a pair of intermeshing concave-convex rollers, and at 70-140 ℃, the protrusions on the first convex roller a2 form upper protrusions a2 on the surface of the first sheet 3, and the perforating needles on the first concave roller B2 pierce the first sheet 3 to form holes and closely attach the first sheet 3 to the first concave roller B2, wherein: the first sheet 3 is 18gsm hydrophobic hot air non-woven fabric;
at the same time, the second sheet 4 is also embossed and punched by a pair of intermeshing concave-convex rollers, and at 70-140 ℃, the protrusions on the second convex roller D2 form lower protrusions a 2' on the surface of the second sheet 4, and the punching needles on the second convex roller D2 pierce the second sheet 4 to form openings, so as to closely attach the second sheet 4 to the second concave roller C2, wherein: the second sheet 4 is a 20gsm hydrophilic hot-air non-woven fabric;
the first concave roller B2 and the second concave roller C2 are matched and driven by a first concave roller B2 and a second concave roller C2 through a glue applying device I, glue is applied to the first sheet 3 with the protrusions and the holes and the second sheet 4 with the protrusions and the holes, after hot melt glue is applied to the first sheet 3 or the second sheet 4 with the protrusions and the holes, a composite overlapping hole opening process is carried out by utilizing the punching needles on the first concave roller B2, and the first sheet 3 and the second sheet 4 are simultaneously compounded together, so that the three-dimensional holed sheet 34 with the protrusions on two sides is formed.
The three-dimensional sheet 34 in the embodiment is formed by compounding a first sheet 3 and a second sheet 4, and the surface of the three-dimensional sheet is provided with double-sided bulges and holes b 2; the double-sided protrusions are composed of upper protrusions a2 on the first sheet 3 and lower protrusions a2 ' on the second sheet 4, the upper protrusions a2 and the lower protrusions a2 ' are hollow protrusions, the protrusion directions are opposite to each other, the bottoms of the protrusions are overlapped with each other in a compounding mode, and the protrusion height of the upper protrusions a2 is larger than that of the lower protrusions a2 '; the holes b2 are positioned between the adjacent bulges and penetrate through the three-dimensional sheet 34, and the holes b2 are funnel-shaped; the composite overlapping plane of the upper protrusion a2 and the lower protrusion a 2' is the same plane as the upper opening plane of the funnel-shaped opening b 2.
Because the three-dimensional sheet 34 is formed by the first sheet 3 and the second sheet 4 at the open holes in a glue compounding manner, and the three-dimensional sheet 34 is provided with the double-sided bulges, the three-dimensional thickness of the three-dimensional sheet 34 is obviously increased, so that the bulkiness of the sheet is improved, the three-dimensional sheet is more comfortable and elastic when used for a surface layer of a sanitary product, and the compound strength is increased by using glue compounding, in the using process, the three-dimensional sheet is in contact with and rubs with a human body for many times, the compound strength of the first sheet 3 and the second sheet 4 is high, layering is not easy to generate, and the sheet fracture caused by layering is prevented; meanwhile, the height of the lower protrusion a2 'is lower than that of the upper protrusion a2, so that the height of the lower protrusion a 2' is close to that of the funnel-shaped opening b2, the contact area with the absorbent core is increased, the bonding strength with the absorbent core is increased, and the problems of layering, cracking and the like of the sanitary product in the using process are effectively prevented.
Example 3
As shown in fig. 10 to 12, the first sheet 5 is embossed and holed by a pair of intermeshing concave-convex rollers, and at 70 to 140 ℃, the protrusions of the first convex roller a3 form upper protrusions a3 on the surface of the first sheet 5, and the perforating needles of the first concave roller B3 pierce the first sheet 5 to form holes and closely attach the first sheet 5 to the first concave roller B3, wherein: the first sheet 5 is a 22gsm PE perforated film sheet;
at the same time, the second sheet material 6 is also embossed and punched by a pair of concave-convex rollers engaged with each other, at 70-140 ℃, the protrusions on the second convex roller D3 form lower protrusions a 3' on the surface of the second sheet material 6, and the punching needles on the second convex roller D3 pierce the second sheet material 6 to form openings, so that the second sheet material 6 is closely attached to the second concave roller C3, wherein: the second sheet 6 is a 22gsm hydrophilic hot-air non-woven fabric;
the first sheet material 5, the second sheet material 6 and the third sheet material 7 between the first sheet material 5 and the second sheet material 6, which are used for forming the bulges and the openings, are heated between the first concave roller B3 and the second concave roller C3 through the matching transmission of the first concave roller B3 and the second concave roller C3, so that the resin on the surfaces of the fibers is melted, the composite overlapping opening process is carried out under the action of the perforating needles on the first concave roller B3, and meanwhile, the first sheet material 5, the second sheet material 6 and the third sheet material 7 are mutually combined, and the three-dimensional opening sheet material 576 with the bulges on the two sides is formed.
The three-dimensional sheet 576 in the embodiment is formed by compounding a first sheet 5, a second sheet 6 and a third sheet 7, and the surface of the three-dimensional sheet has double-sided protrusions and holes b3, wherein the third sheet 7 is positioned between the first sheet 5 and the second sheet 6; the double-sided bulges are composed of an upper bulge a3 on the first sheet 5 and a lower bulge a3 ' on the second sheet 6, the upper bulge a3 and the lower bulge a3 ' are separated by the third sheet 7, the upper bulge a3 and the lower bulge a3 ' are hollow bulges, the bulge directions are opposite, the bulge bottoms are mutually combined and overlapped, and the bulge heights are the same; the holes b3 are positioned between the adjacent protrusions and penetrate through the three-dimensional sheet 576, and the holes b3 are funnel-shaped; the composite overlapping plane of the upper protrusion a3 and the lower protrusion a 3' is the same plane as the upper opening plane of the funnel-shaped opening b 3.
Due to the third sheet material 7 located between the first sheet material 5 and the second sheet material 6, the upper protrusions a3 and the lower protrusions a 3' can be supported, preventing problems such as collapse, deformation, etc. of the protrusions due to pressing, contact. And the first sheet material 5 is a PE perforated film, so that body fluid is effectively prevented from returning to the surface layer of the absorbent product after being absorbed by the absorbent core, and the dryness and comfort of the absorbent product are improved.
Example 4
As shown in fig. 13 to 15, the first sheet material 8 is embossed and holed by a pair of concave-convex rollers engaged with each other, at 70 to 140 ℃, the protrusions of the first convex roller a4 form upper protrusions a4 on the surface of the first sheet material 8, and the perforating needles of the first concave roller B4 pierce the first sheet material 8 to form holes and closely attach the first sheet material 8 to the first concave roller B4, wherein: the first sheet material 8 is 15gsm weak hydrophilic spun-bonded non-woven fabric;
at the same time, the second sheet material 9 is also embossed and punched by a pair of concave-convex rollers engaged with each other, at 70-140 ℃, the protrusions on the second convex roller D4 form lower protrusions a 4' on the surface of the second sheet material 9, and the punching needles on the second convex roller D4 pierce the second sheet material 9 to form openings, so that the second sheet material 9 is closely attached to the second concave roller C4, wherein: the second sheet 9 is a 22gsm hydrophilic hot-air non-woven fabric;
further, before the combination, the third sheet 10 passes through a pair of concave rollers G4 and a needle roller K4 which are engaged with each other, and the openings c are formed in the surface.
The third sheet material 10 is positioned between the first sheet material 8 and the second sheet material 9, the first sheet material 8, the second sheet material 9 and the third sheet material 10 with the opening C which form the protrusions and the openings are heated between the first concave roller B4 and the second concave roller C4 through the matching transmission of the first concave roller B4 and the second concave roller C4, the resin on the fiber surfaces is melted, and in the process of carrying out composite overlapping opening under the action of the perforating needles on the first concave roller B4, the first sheet material 8, the second sheet material 9 and the third sheet material 10 are combined with each other, so that the three-dimensional opening sheet material 809 with the protrusions on the two sides is formed.
The three-dimensional sheet 809 in the embodiment is formed by compounding a first sheet 8, a second sheet 9 and a third sheet 10, and the surface of the three-dimensional sheet is provided with double-sided protrusions and openings b4, wherein the third sheet 10 is positioned between the first sheet 8 and the second sheet 9, and the third sheet 10 is provided with openings c; the double-sided protrusions are composed of upper protrusions a4 on the first sheet 8 and lower protrusions a4 'on the second sheet 9, the upper protrusions a4 and the lower protrusions a 4' are hollow protrusions, the protrusion directions are opposite, the bottoms of the protrusions are mutually overlapped in a compounding mode, and the protrusion heights are the same; the openings b4 are positioned between the adjacent protrusions and penetrate through the three-dimensional sheet 809, and the openings b4 are funnel-shaped; the composite overlapping plane of the upper protrusion a4 and the lower protrusion a 4' is the same plane as the upper opening plane of the funnel-shaped opening b 4.
Due to the third sheet material 10 being positioned between the first sheet material 8 and the second sheet material 9, the upper protrusions a4 and the lower protrusions a 4' are supported, preventing problems such as collapse, deformation and the like of the protrusions due to pressing, contact. And the third sheet material 10 is provided with the holes c, which is helpful for body fluid to pass through the raised areas, increases the absorption speed, and simultaneously effectively prevents the body fluid from returning to the surface layer of the absorbent product after being absorbed by the absorbent core, thereby improving the dryness and comfort of the absorbent product.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims.
Claims (13)
1. The utility model provides a three-dimensional sheet of trompil with two-sided arch, three-dimensional sheet is formed by two-layer or more than two-layer sheet looks complex, three-dimensional sheet is including the first sheet that is located the top and the second sheet that is located the below, its characterized in that:
the surface of the three-dimensional sheet is provided with double-sided bulges and holes; the double-sided bulges consist of upper bulges on the first sheet and lower bulges on the second sheet, the upper bulges and the lower bulges are hollow bulges, the bulge directions are opposite, and the bottom parts of the bulges are mutually compounded and overlapped; the openings are positioned between the adjacent bulges and penetrate through the three-dimensional sheet; the composite overlapping plane of the upper bulge and the lower bulge and the upper opening plane of the opening are the same plane.
2. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the opening is funnel-shaped.
3. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the sheet is any one of a hot air non-woven fabric sheet, a spun-bonded non-woven fabric sheet, a hot rolled non-woven fabric sheet, a spunlace non-woven fabric sheet and a PE perforated film sheet.
4. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the bonding mode between the sheets is any one of thermal bonding, ultrasonic bonding and adhesive bonding.
5. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the height of the upper protrusion is the same as that of the lower protrusion.
6. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the height of the lower bulge is larger than that of the opening.
7. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: the first sheet has a hydrophilicity lower than that of the second sheet.
8. The perforated three-dimensional sheet with double-sided protrusions of claim 1, wherein: and a third sheet is arranged between the first sheet and the second sheet, compositely overlapped with the first sheet and the second sheet respectively, and provided with an opening with the same shape as the opening.
9. The perforated three-dimensional sheet with double-sided protrusions of claim 8, wherein: the third sheet has an open cell structure in a region not combined with the first and second sheets.
10. A forming method of an open-hole three-dimensional sheet with double-sided protrusions is characterized by comprising the following steps:
embossing and perforating a first sheet by a pair of mutually meshed concave-convex rollers, wherein at the temperature of 70-140 ℃, the protrusions on the first convex roller form upper protrusions on the surface of the first sheet, and the perforating needles on the first concave roller pierce the first sheet to form openings and tightly attach the first sheet to the first concave roller;
simultaneously, embossing and punching the second sheet by a pair of mutually meshed concave-convex rollers, wherein at the temperature of 70-140 ℃, the protrusions on the second convex roller form lower protrusions on the surface of the second sheet, and the punching needles on the second convex roller pierce the second sheet to form holes so as to closely attach the second sheet to the second concave roller;
the first sheet and the second sheet which are provided with the protrusions and the holes are mutually compounded together between the first concave roller and the second concave roller through the matching transmission of the first concave roller and the second concave roller, and the compound overlapping holes are formed under the action of the perforating needles on the first concave roller, so that the three-dimensional perforated sheet with the protrusions on the two sides is formed.
11. The method for forming an open-pore three-dimensional sheet material with double-sided protrusions as claimed in claim 10, wherein: the first sheet and the second sheet forming the protrusions and the openings are sized before entering between the first concave roller and the second concave roller.
12. The method for forming an open-pore three-dimensional sheet material with double-sided protrusions as claimed in claim 10 or 11, wherein: and (3) adding a third sheet to the middle of the first sheet and the second sheet when the first sheet and the second sheet which are provided with the protrusions and the holes enter between the first concave roller and the second concave roller, and performing composite overlapping hole opening.
13. The method for forming an open-pore three-dimensional sheet material with double-sided protrusions as claimed in claim 12, wherein: the third sheet is subjected to hole opening forming before entering between the first concave roller and the second concave roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386158.5A CN108357183B (en) | 2018-04-26 | 2018-04-26 | Perforated three-dimensional sheet with double-sided protrusions and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386158.5A CN108357183B (en) | 2018-04-26 | 2018-04-26 | Perforated three-dimensional sheet with double-sided protrusions and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108357183A CN108357183A (en) | 2018-08-03 |
| CN108357183B true CN108357183B (en) | 2020-08-07 |
Family
ID=63009202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810386158.5A Active CN108357183B (en) | 2018-04-26 | 2018-04-26 | Perforated three-dimensional sheet with double-sided protrusions and forming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108357183B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203079A (en) * | 2018-11-02 | 2019-01-15 | 张掖征峰科技有限公司 | Positive and negative anodes collector porcupine roller puncher |
| CN114100599A (en) * | 2021-12-20 | 2022-03-01 | 中化长和科技有限责任公司 | Preparation method of oil refining hydrogenation protection catalyst |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2393149A1 (en) * | 1999-12-21 | 2001-06-28 | The Procter & Gamble Company | Disposable article comprising an apertured laminate web |
| US7662257B2 (en) * | 2005-04-21 | 2010-02-16 | Georgia-Pacific Consumer Products Llc | Multi-ply paper towel with absorbent core |
| JP4410022B2 (en) * | 2004-04-27 | 2010-02-03 | ユニ・チャーム株式会社 | Absorbent articles |
| TWI391129B (en) * | 2005-12-27 | 2013-04-01 | Kao Corp | Absorbent items |
| CN205626299U (en) * | 2016-03-16 | 2016-10-12 | 厦门延江新材料股份有限公司 | Punched non -woven fabric |
| CN105919732A (en) * | 2016-05-25 | 2016-09-07 | 杭州千芝雅卫生用品有限公司 | 3D embossed baby diaper and manufacturing method of urine absorption core body |
| CN208343650U (en) * | 2018-04-26 | 2019-01-08 | 厦门延江新材料股份有限公司 | A kind of aperture three-dimensional sheet with two-sided protrusion |
-
2018
- 2018-04-26 CN CN201810386158.5A patent/CN108357183B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108357183A (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI708597B (en) | Absorbent articles | |
| JP5270301B2 (en) | Absorbent article and manufacturing method thereof | |
| EP1401642B1 (en) | Laminate made of fibrous layers | |
| JP5084434B2 (en) | Top sheet for absorbent article and method for producing the same | |
| KR100872809B1 (en) | Absorptive composite sheet and article using the same | |
| JP2004141619A (en) | Absorptive article | |
| JP2010148730A (en) | Surface sheet of absorbent article | |
| JP2009273720A (en) | Absorbent article | |
| TW201513839A (en) | Absorbent article | |
| JP2002065738A (en) | Absorptive article using surface material of continuous filament | |
| CN108357183B (en) | Perforated three-dimensional sheet with double-sided protrusions and forming method thereof | |
| JP2005334374A (en) | Surface sheet of absorptive article | |
| JP2005296480A (en) | Sanitary napkin | |
| JP4275421B2 (en) | Absorbent articles | |
| CN106956485B (en) | Double-layer composite fiber material and preparation method, device and application thereof | |
| JP2008161303A (en) | Absorbent article | |
| JP6028054B2 (en) | Absorbent articles | |
| JP2009131593A (en) | Absorbent article | |
| JP2004181087A (en) | Absorbent article having liquid trapping layer | |
| US7919169B2 (en) | Laminate made of fibrous layers for use in absorbent articles | |
| CN208343650U (en) | A kind of aperture three-dimensional sheet with two-sided protrusion | |
| JP5405798B2 (en) | Absorbent articles | |
| JP4921278B2 (en) | Top sheet for absorbent article and method for producing the same | |
| JP2000262558A (en) | Liquid-permeable surface sheet used for disposable absorbing article | |
| CN207140486U (en) | A kind of donble layer composite fibre material and personal care absorbent product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |