Forming drum

FIELD: machine engineering.

SUBSTANCE: forming drum for formation of a cloth from short fibers consists of at least two strong frames of annular shape located at a distance from each other and connected by transverse plate elements located radially and forming together with the strong frames a framework for placing a circular meshy surface. The meshy surface is formed by laying radially directed plates, one of which is inserted into the slits of the other plates, along and across the honeycomb section. According to the invention the circular meshy surface is made of at least two sections arranged in a circumferential direction and each of which is located on a separate honeycomb section made in the form of an archwise curved frame limiting the honeycomb structure composed of rectangular cells in the plan and the plates that are forming a meshy surface are located on the honeycomb section with support on the cell-forming plates. To fix the plates on the honeycomb section, a part of transversely and longitudinally disposed plates is executed with tongues with bent ends for engaging with the cell-forming plates on the back side of the honeycomb section. On the top of each frame a detachably mounted grid for the precipitated short fibers is placed.

EFFECT: improving the quality of the resulted finished product.

3 cl, 9 dwg

 



 

Same patents:

FIELD: process engineering.

SUBSTANCE: this invention discloses industrial cloth, conveyor belt or sleeve and method of their production. Industrial cloth is produced by helical coiling of polymer material strips and securing of adjacent sides of material strips with the help of ultrasound or laser welding. Said cloth can be perforated by appropriate process to render it air or water permeable.

EFFECT: said cloth can be perforated by appropriate process to render it air and/or water permeable.

32 cl, 14 dwg

FIELD: process engineering.

SUBSTANCE: proposed cloth, for example, endless conveyor belt can be used in production of nonwoven materials. Industrial cloth is produced by helical coiling of polymer material strips and securing of adjacent sides of material strips with the help of ultrasound or laser welding. Said cloth can be perforated by appropriate process to render it air and/or water permeable.

EFFECT: production of technical cloth.

32 cl, 16 dwg

FIELD: textiles, paper.

SUBSTANCE: fabric structure for use as a tape or a sleeve for obtaining textured nonwoven materials, permeable to air and/or water, comprising: a carrier substrate, a surface of contact with the web, having a pattern comprising a number of raised contact pads and recesses, for imparting texture to the nonwoven material, and a number of voids for passage of water and/or air from the fabric surface into and/or through the structure. At that the effective diameter of the said voids is more than 50 microns, and the contact surface with the web comprises the material of surface comprising a coating or a layer of the laminated film, at that in the said coating or film the grooves are formed, and the barrier layer under the surface of contact with the web of the said fabric structure, which enables the surface material to penetrate partially into the substrate under the surface of contact with the web.

EFFECT: obtaining textured nonwoven materials, permeable to air and/or water.

67 cl, 27 dwg

FIELD: textiles, paper.

SUBSTANCE: technical fabric such as an endless tape or sleeve is disclosed, for production of nonwoven materials and method of its manufacture. The fabric comprises through cavities, each of the said through cavities comprises a first opening on the upper surface of the fabric, the first annular raised edge adjacent to the first opening, at that the said raised edge forms a continuous raised rim around the said opening. Each through cavity additionally comprises a second opening on the lower surface of the fabric and the second annular raised edge adjacent to the second opening, the first opening may have a surface area which is greater than the surface area of the second opening, at that the said raised edge forms a continuous raised rim around the said opening.

EFFECT: obtaining technical fabric.

36 cl, 27 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention relates to supporting elements such as tapes or sleeves which are used in production of labelled or textured nonwoven products having a pattern. The supporting element such as tape or sleeve comprises a surface relief pattern on the side which is in contact with the sheet. On the upper surface of the supporting element the contact pads, respective recesses, through cavities and/or grooves are formed to create a surface relief pattern. The contact pads, the respective recesses, the through cavities and/or grooves can be formed by engraving, cutting, etching, stamping, mechanical punching, or their combination. The improved tape or sleeve give the non-woven product manufactured on them the desired physical properties such as bulk density, appearance, texture, absorption capacity, strength and tactile sensations.

EFFECT: improved fibre cohesion, reduction of fluffing fibres, improved removal of fabric or its transfer from the specified supporting element to another, or to another position.

45 cl, 15 dwg

FIELD: textiles, paper.

SUBSTANCE: moisture permeable sheet is provided that is suitable for use as a moisture permeable upper sheet for a garment, absorbing human wastes. One surface 58 of the surfaces 57, 58 of moisture permeable sheet 11 is equipped with ledges 61 and cavities 62 extending parallel to each other in the longitudinal direction A and alternating in the transverse direction B. One surface 58 is additionally equipped in at least corresponding ledges 61 with indented parts 70. The thermoplastic synthetic fibers forming the moisture permeable sheet 11 in the respective indented parts 70 are collected together more densely than in regions surrounding the respective indented parts 70, and thus the original fiber shape of the individual thermoplastic synthetic fibers is retained.

EFFECT: invention enables to improve the absorption of human wastes due to their uniform movement not only into the cavities, but also into indented parts.

15 cl, 4 ex, 1 tbl, 15 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises forming absorbing core, contracting it between press rolls 8, and displacing compacted core via next zone of press rolls 16. Said next zone comprises two shafts 18, 20, one of them being provided with surface with elastic material to decrease area of higher density in said absorbing core. 15. Device 2 comprises core forming machine 4, clamping contact zone 8 between two shafts 10, 12, next zone of contact of shafts 18 between rolls 18,20 wherein said next zone of press rolls 16 is located downstream of that of press shafts. One of said shafts 18, 20 is provided with surface with elastic material. Absorbing core has specific volume of fibrous mass smaller than 10 cm3/g, preferably smaller than 8 cm3/g, and most preferably, 6 cm3/g, and contains no increased density sections.

EFFECT: thin dense absorbing cores.

20 cl, 2 dwg, 1 ex

FIELD: technological processes.

SUBSTANCE: method includes the following: dry laying of fibers with substantially even thickness from unlinked fibers with low moisture content within the area of residual moisture. Further the method includes transformation of fibers laying by pressing and impression into fibrous layer with creation of impressed pattern with compacted zones of linked fibers, in which fibers are connected to each other, substantially, by means of mutual binding, and moistening of fibrous web at least on one external side with water-latex mixture, depositing latex by means of drying with binding of fibers inside and outside zones of bound fibers.

EFFECT: improved absorbing ability and reduced dusting.

23 cl, 4 dwg, 3 tbl

FIELD: textile, paper.

SUBSTANCE: invention concerns composite material for napkin and method of the material obtainment. Method of material forming involves hydraulic interweaving of staple fiber with non-woven canvas formed by continuous elementary threads to form composite material. Average fiber length of the staple fiber is approximately 0.3 to 25 mm, and at least part of the staple fiber is synthetic. The composite material forms first and second surfaces, where the first surface and includes mainly staple fiber and the second surface includes mainly continuous elementary thread. Additionally, at least part of the staple fiber protrudes from the second surface, and at least 90 wt % of the staple fiber is synthetic.

EFFECT: enhanced softness and absorbing capacity of material.

24 cl, 2 ex, 5 tbl, 3 dwg

The invention relates to the production of nonwoven materials used as insulation, sealing and coating products in the automotive, furniture, construction, packaging, etc

FIELD: textile, paper.

SUBSTANCE: invention concerns composite material for napkin and method of the material obtainment. Method of material forming involves hydraulic interweaving of staple fiber with non-woven canvas formed by continuous elementary threads to form composite material. Average fiber length of the staple fiber is approximately 0.3 to 25 mm, and at least part of the staple fiber is synthetic. The composite material forms first and second surfaces, where the first surface and includes mainly staple fiber and the second surface includes mainly continuous elementary thread. Additionally, at least part of the staple fiber protrudes from the second surface, and at least 90 wt % of the staple fiber is synthetic.

EFFECT: enhanced softness and absorbing capacity of material.

24 cl, 2 ex, 5 tbl, 3 dwg

FIELD: technological processes.

SUBSTANCE: method includes the following: dry laying of fibers with substantially even thickness from unlinked fibers with low moisture content within the area of residual moisture. Further the method includes transformation of fibers laying by pressing and impression into fibrous layer with creation of impressed pattern with compacted zones of linked fibers, in which fibers are connected to each other, substantially, by means of mutual binding, and moistening of fibrous web at least on one external side with water-latex mixture, depositing latex by means of drying with binding of fibers inside and outside zones of bound fibers.

EFFECT: improved absorbing ability and reduced dusting.

23 cl, 4 dwg, 3 tbl

FIELD: process engineering.

SUBSTANCE: proposed method comprises forming absorbing core, contracting it between press rolls 8, and displacing compacted core via next zone of press rolls 16. Said next zone comprises two shafts 18, 20, one of them being provided with surface with elastic material to decrease area of higher density in said absorbing core. 15. Device 2 comprises core forming machine 4, clamping contact zone 8 between two shafts 10, 12, next zone of contact of shafts 18 between rolls 18,20 wherein said next zone of press rolls 16 is located downstream of that of press shafts. One of said shafts 18, 20 is provided with surface with elastic material. Absorbing core has specific volume of fibrous mass smaller than 10 cm3/g, preferably smaller than 8 cm3/g, and most preferably, 6 cm3/g, and contains no increased density sections.

EFFECT: thin dense absorbing cores.

20 cl, 2 dwg, 1 ex

FIELD: textiles, paper.

SUBSTANCE: moisture permeable sheet is provided that is suitable for use as a moisture permeable upper sheet for a garment, absorbing human wastes. One surface 58 of the surfaces 57, 58 of moisture permeable sheet 11 is equipped with ledges 61 and cavities 62 extending parallel to each other in the longitudinal direction A and alternating in the transverse direction B. One surface 58 is additionally equipped in at least corresponding ledges 61 with indented parts 70. The thermoplastic synthetic fibers forming the moisture permeable sheet 11 in the respective indented parts 70 are collected together more densely than in regions surrounding the respective indented parts 70, and thus the original fiber shape of the individual thermoplastic synthetic fibers is retained.

EFFECT: invention enables to improve the absorption of human wastes due to their uniform movement not only into the cavities, but also into indented parts.

15 cl, 4 ex, 1 tbl, 15 dwg

FIELD: textiles, paper.

SUBSTANCE: present invention relates to supporting elements such as tapes or sleeves which are used in production of labelled or textured nonwoven products having a pattern. The supporting element such as tape or sleeve comprises a surface relief pattern on the side which is in contact with the sheet. On the upper surface of the supporting element the contact pads, respective recesses, through cavities and/or grooves are formed to create a surface relief pattern. The contact pads, the respective recesses, the through cavities and/or grooves can be formed by engraving, cutting, etching, stamping, mechanical punching, or their combination. The improved tape or sleeve give the non-woven product manufactured on them the desired physical properties such as bulk density, appearance, texture, absorption capacity, strength and tactile sensations.

EFFECT: improved fibre cohesion, reduction of fluffing fibres, improved removal of fabric or its transfer from the specified supporting element to another, or to another position.

45 cl, 15 dwg

FIELD: textiles, paper.

SUBSTANCE: technical fabric such as an endless tape or sleeve is disclosed, for production of nonwoven materials and method of its manufacture. The fabric comprises through cavities, each of the said through cavities comprises a first opening on the upper surface of the fabric, the first annular raised edge adjacent to the first opening, at that the said raised edge forms a continuous raised rim around the said opening. Each through cavity additionally comprises a second opening on the lower surface of the fabric and the second annular raised edge adjacent to the second opening, the first opening may have a surface area which is greater than the surface area of the second opening, at that the said raised edge forms a continuous raised rim around the said opening.

EFFECT: obtaining technical fabric.

36 cl, 27 dwg

FIELD: textiles, paper.

SUBSTANCE: fabric structure for use as a tape or a sleeve for obtaining textured nonwoven materials, permeable to air and/or water, comprising: a carrier substrate, a surface of contact with the web, having a pattern comprising a number of raised contact pads and recesses, for imparting texture to the nonwoven material, and a number of voids for passage of water and/or air from the fabric surface into and/or through the structure. At that the effective diameter of the said voids is more than 50 microns, and the contact surface with the web comprises the material of surface comprising a coating or a layer of the laminated film, at that in the said coating or film the grooves are formed, and the barrier layer under the surface of contact with the web of the said fabric structure, which enables the surface material to penetrate partially into the substrate under the surface of contact with the web.

EFFECT: obtaining textured nonwoven materials, permeable to air and/or water.

67 cl, 27 dwg

FIELD: process engineering.

SUBSTANCE: proposed cloth, for example, endless conveyor belt can be used in production of nonwoven materials. Industrial cloth is produced by helical coiling of polymer material strips and securing of adjacent sides of material strips with the help of ultrasound or laser welding. Said cloth can be perforated by appropriate process to render it air and/or water permeable.

EFFECT: production of technical cloth.

32 cl, 16 dwg

FIELD: process engineering.

SUBSTANCE: this invention discloses industrial cloth, conveyor belt or sleeve and method of their production. Industrial cloth is produced by helical coiling of polymer material strips and securing of adjacent sides of material strips with the help of ultrasound or laser welding. Said cloth can be perforated by appropriate process to render it air or water permeable.

EFFECT: said cloth can be perforated by appropriate process to render it air and/or water permeable.

32 cl, 14 dwg

Forming drum // 2640993

FIELD: machine engineering.

SUBSTANCE: forming drum for formation of a cloth from short fibers consists of at least two strong frames of annular shape located at a distance from each other and connected by transverse plate elements located radially and forming together with the strong frames a framework for placing a circular meshy surface. The meshy surface is formed by laying radially directed plates, one of which is inserted into the slits of the other plates, along and across the honeycomb section. According to the invention the circular meshy surface is made of at least two sections arranged in a circumferential direction and each of which is located on a separate honeycomb section made in the form of an archwise curved frame limiting the honeycomb structure composed of rectangular cells in the plan and the plates that are forming a meshy surface are located on the honeycomb section with support on the cell-forming plates. To fix the plates on the honeycomb section, a part of transversely and longitudinally disposed plates is executed with tongues with bent ends for engaging with the cell-forming plates on the back side of the honeycomb section. On the top of each frame a detachably mounted grid for the precipitated short fibers is placed.

EFFECT: improving the quality of the resulted finished product.

3 cl, 9 dwg

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