EP3216905B1 - Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage - Google Patents

Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage Download PDF

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Publication number
EP3216905B1
EP3216905B1 EP16159620.0A EP16159620A EP3216905B1 EP 3216905 B1 EP3216905 B1 EP 3216905B1 EP 16159620 A EP16159620 A EP 16159620A EP 3216905 B1 EP3216905 B1 EP 3216905B1
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EP
European Patent Office
Prior art keywords
filaments
spunbond
weldable
component
spunbonded
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
Application number
EP16159620.0A
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German (de)
English (en)
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EP3216905A1 (fr
Inventor
Claudio Cinquemani
Alexander Klein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to DK16159620.0T priority Critical patent/DK3216905T3/da
Priority to EP16159620.0A priority patent/EP3216905B1/fr
Priority to JOP/2020/0179A priority patent/JOP20200179A1/ar
Priority to DK18206141.6T priority patent/DK3480352T3/da
Priority to EP18206141.6A priority patent/EP3480352B1/fr
Priority to US15/450,986 priority patent/US20180002851A1/en
Priority to MX2017003093A priority patent/MX2017003093A/es
Priority to MX2020009501A priority patent/MX2020009501A/es
Priority to CN201710268887.6A priority patent/CN107177935B/zh
Priority to JOP/2017/0061A priority patent/JO3652B1/ar
Publication of EP3216905A1 publication Critical patent/EP3216905A1/fr
Application granted granted Critical
Publication of EP3216905B1 publication Critical patent/EP3216905B1/fr
Priority to US17/092,494 priority patent/US20210054550A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics
    • D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/10—Packaging, e.g. bags

Definitions

  • the invention relates to a weldable spunbonded nonwoven fabric, in particular a weldable spunbonded nonwoven fabric as a component of packaging or packaging sacks, wherein the spunbonded nonwoven fabric has endless filaments which preferably consist of thermoplastic material.
  • the invention further relates to a process for the production of a weldable spunbond or packaging spunbond web.
  • spunbonded nonwoven filaments are used.
  • continuous filaments differ because of their quasi-endless length of staple fibers, which have much smaller lengths of, for example, 10 mm to 60 mm. It is within the scope of the invention that a spunbonded nonwoven or spunbonded nonwoven according to the invention is produced by means of a spunbond process as a spunbond nonwoven.
  • spunbonded nonwovens or packaging spunbonded nonwovens for packaging walls - in particular of bag-shaped packaging - are known from practice in various embodiments.
  • the spunbonded nonwovens can be used separately as packaging walls or as part of a laminate for the packaging walls.
  • laminates of spunbonded nonwovens and plastic films are known for this purpose.
  • Spunbonded or spunbonded nonwoven packaging walls are also known, in particular, for sack-shaped packages for bulk goods with filling weights of 25 to 500 kg. Spun nonwovens are also used for cement sacks in this context.
  • a bag-shaped packaging based on a spunbonded fabric is expediently carried out as follows. From the spunbond is initially produces a tube (so-called "tube") and thereby opposite side ends of the nonwoven web are connected to each other, in particular welded together. Then the tube is cut to the desired bag length, the resulting product is folded or folded and then a bottom sheet is placed as a bottom component and a lid sheet as a lid component and then welded to the bag body.
  • a tube so-called "tube”
  • the previously known or prepared in the manner described above sack-shaped packaging can often be in terms of strength to be desired.
  • the spunbonded fabrics used for the production of the known packaging bags leave something to be desired in terms of their processability. This relates in particular to the weldability or sealability of the spunbonded nonwovens in the production of a packaging or a packaging sack.
  • the continuous filaments of the spunbonded nonwoven may contain a filler, the filler content being> 10% by weight.
  • the continuous filaments can be monocomponent filaments or multicomponent filaments.
  • the multicomponent filaments may be in core-shell configuration or in side-by-side configuration.
  • the spunbonded nonwovens described here are not intended as packaging spun nonwovens or not for packaging.
  • the continuous filaments or at least one component of the continuous filaments of the weldable spunbonded nonwoven fabric in particular the weldable packaging spunbonded nonwoven 4 to 25 wt .-% of the filler, preferably 5 to 20 wt .-% and very preferably 6 to 15 wt .-% of the filler.
  • the individual proportions of the constituents of the endless filaments - in particular the plastic component or the plastic components of the continuous filaments - add up to a total of 100 wt .-% with the proportion of the filler.
  • the filler is at least one metal salt and preferably at least one alkaline earth metal salt.
  • a particularly recommended embodiment of the invention is characterized in that the filler is a calcium salt and most preferably the filler is calcium carbonate. Calcium carbonate has proved to be particularly useful as a filler for the weldable spunbonded fabric according to the invention for solving the technical problem. Basically, calcium sulfate can also be used as a filler.
  • the continuous filaments of the weldable spunbonded nonwoven fabric are formed as multicomponent filaments, in particular as bicomponent filaments.
  • the filler is contained in a plastic component arranged on the outer surface of the multicomponent filaments or bicomponent filaments.
  • a first plastic component arranged on the surface of the multicomponent filaments or the bicomponent filaments has the same, preferably a lower melting point, than at least one second plastic component of the multicomponent filaments or bicomponent filaments.
  • the filler is contained at least in the lower melting plastic component or contained only in the first equal melting plastic component.
  • the multicomponent filaments or the bicomponent filaments of the weldable spunbonded web have a core-sheath configuration.
  • the filler is expediently contained in the sheath component of these multicomponent filaments or bicomponent filaments.
  • the equal or lower melting plastic component of the multicomponent filaments or bicomponent filaments of the weldable spunbonded nonwoven fabric is the sheath component and the filler is then contained at least in this sheath component or substantially or merely contained in the sheath component.
  • the filler is arranged in a plastic component of the bicomponent filaments or multi-component filaments which is located on the surface of the filaments.
  • this is the lower melting plastic component in the filament and most preferably, the lower melting component is the sheath component of a core-sheath configuration of the bicomponent filaments.
  • the filler - especially the calcium carbonate - arranged in the arranged on the surface of the filaments - preferably lower melting plastic component, preferably contained in the lower melting plastic component in the jacket of the bicomponent filaments or multicomponent filaments.
  • the filler or the calcium carbonate is expediently distributed homogeneously or essentially homogeneously in the plastic component or arranged on the outer surface or essentially on the outer surface of the plastic component.
  • the proportion of the sheath component in relation to the core component is higher in the case of multicomponent filaments or bicomponent filaments of spunbonded webs or spunbonded areas intended for welding than in the case of multicomponent filaments or bicomponent filaments of spunbonded webs or spunbonded web areas that are not intended for welding.
  • a particularly preferred embodiment of the invention is characterized in that the weldable spunbonded fabric is a calendered spunbonded nonwoven. Empfohlene admir a surface of this spunbond is calendered smooth and a surface profiled calendered. But it can also be calendered smoothly both surfaces of the spunbonded fabric. It is within the scope of the invention that the ratio of the strength or tensile strength of the weldable spunbonded fabric in the machine direction (MD) to the strength or tensile strength of the spunbonded material transversely to the machine direction (CD) is either equal to 1 or greater than 1, preferably greater than 1 , 1 and more preferably greater than 1.2.
  • Machine direction means in particular the conveying direction of the deposited spunbonded on a shelf or on a storage device.
  • a weldable spunbonded fabric according to the invention is produced by the following method: First, continuous filaments are spun by means of a spinnerette and Subsequently, these filaments are cooled in a cooling device and then stretched by means of a drawing device and then deposited on a storage device for spunbonded.
  • the weldable spunbonded or weldable spunbonded nonwoven fabric according to the invention is produced as a spunbond nonwoven by a spunbond process.
  • the cooling device is subdivided into at least two cabin sections arranged one above the other or in the direction of filament flow, wherein cooling air with different convective heat removal capacities - in particular cooling air with different temperatures - is introduced into the filament flow space from these cabin sections.
  • the cooling device has only two such one above the other or in Filamentströmungsraum successively arranged cabin sections.
  • the cooling device is connected via an intermediate channel - in particular via an intermediate channel converging in the direction of filament flow - to a draw channel of the drawing device.
  • the endless filaments are thus guided through the cooling device, then through the intermediate channel and then through the lower channel.
  • the filaments are deposited to the spunbonded web or spunbonded on a storage device, which is preferably designed as Ablagesiebband or endlessly circulating Ablagesiebband.
  • a particularly recommended embodiment of the method and the device for producing a weldable spunbonded fabric according to the invention is characterized in that the aggregate of cooling device, intermediate channel and connected thereto Unterziehkanal is designed as a closed unit and that except the supply of cooling air in the cooling device no further air supply takes place in this closed unit.
  • weldable spunbonded preferably that between the underrun channel and the storage device at least one diffuser is arranged, through which the filaments are guided in Filamentströmungscardi to the storage device out.
  • at least two diffusers, preferably two diffusers in the filament flow direction are arranged one behind the other between the lower draw channel and the storage device.
  • a recommended embodiment of the invention is characterized in that the filaments are guided in the region of the spinnerette or between the spinnerette and the cooling device by a Monosabsaugungsvorraum.
  • the gases exiting the filaments in the form of monomers, oligomers, decomposition products and the like are removed from the filament forming space below the spinnerette or apparatus.
  • the spun-bonded non-woven fabric deposited from the endless filaments is preconsolidated or solidified with at least one calender.
  • the calendering can take place inline or offline. It is recommended that a calender for such calendering have an embossing area of from 10 to 90%, and preferably from 15 to 35%, and more preferably from 18 to 30%.
  • only one of two calender rolls has an engraving and preferably the stamping surface specified above, and the opposite or associated calender roll is smooth or substantially smooth and without engraving.
  • the embossing depth of the calender engraving is preferably 0.1 to 0.8 mm, preferably 0.1 to 0.6 mm and very preferably 0.2 to 0.4 mm.
  • the number of engraved points of a calender roll or the calender roll with engraving is greater than 30 / cm 2 and preferably greater than 40 / cm 2 . Particularly preferably, the number of engraved points of a calender roll or calender roll with engraving is more than 45 / cm 2 . According to In a proven embodiment, the engraving points of a calender roll or the calender roll engraved in plan view diamond shape. According to a further embodiment, the spunbonded nonwoven according to the invention is calendered with a calender of two calender rolls with a smooth surface.
  • the calendering of a spunbonded nonwoven according to the invention can also take place with a belt calender.
  • a variant is characterized in that the calendering is performed at least two stages or two stages.
  • the deposited spunbonded fabric is first calendered with a calender or with a standard calender, which has an engraving, preferably the engraving explained above.
  • the spunbonded fabric is then calendered with a calender of two calender rolls with a smooth surface or calendered with a belt calender.
  • a surface may be plastic coated and a surface of steel or substantially consist of steel.
  • the above-explained calendering of the spunbonded fabric has proven particularly suitable with regard to the solution of the technical problem according to the invention.
  • calendered or preconsolidated / solidified spunbonded nonwovens can be particularly advantageous welded or welded into packages.
  • the spunbonded nonwovens produced according to the invention can be easily and simply combined or coated in the course of the production of packaging with other layers, in particular with plastic films and / or meltblown webs or other spunbond nonwovens.
  • spunbonded nonwoven fabric or weldable spunbonded nonwoven fabric according to a spunbond process explained above has proven particularly useful in the context of the invention.
  • spunbonded nonwovens with optimized filing quality can be obtained, and very homogeneous spunbonded nonwovens can be produced.
  • the spunbond storage can be optimized insofar as thin areas and thick areas in the spunbonded fabric are considerably reduced in comparison to other known methods.
  • the span between the lightest thin spot and the lightest analyzed square and The heaviest thick spot or the heaviest analyzed square are significantly reduced compared to other known manufacturing processes.
  • the span can be lowered, for example, from about 30 g / m 2 in other known methods to about 15 g / m 2 in the method used in the invention.
  • the invention is based on the finding that the spunbond nonwovens prepared as described above can be excellently processed into packaging, for example into packaging sacks, and in particular can be welded simply and easily.
  • the invention is further based on the finding that the welding temperature for welding these spunbonded nonwovens or packaging spunbonded nonwovens according to the invention can be markedly reduced in comparison with the spunbonded nonwoven webs produced by other known processes.
  • This advantageous lowering of the welding temperature results especially in combination with the filler according to the invention, in particular in the form of calcium carbonate.
  • the produced according to the preferred method used Weldable spunbonded webs advantageously have fewer thin spots than other spunbonded webs, and consequently hardly any thin spots during welding can be damaged.
  • the spunbonded nonwovens produced according to the invention are distinguished by optimum processability, in particular weldability, and to that extent they have optimum basic prerequisites for the production of packaging.
  • Spunbond nonwovens in which the ratio of the strength or tensile strength of the spunbond MD in the machine direction (MD) to the strength or tensile strength of the spunbond cross-machine direction (CD) is equal to 1 or greater than 1 have particularly advantageous properties for the production of packaging. is preferably greater than 1.1, preferably greater than 1.2, and more preferably greater than 1.25. - The explained preferred features of the spunbonded nonwoven fabric according to the invention and the method for producing the spunbonded nonwoven and the advantages achieved thereby combine optimally with the filler according to the invention or with the filler content according to the invention and the advantages achieved thereby.
  • the flat lid component and / or the flat bottom component of the packaging consists / consist of at least one spunbonded nonwoven fabric or respectively of a spunbonded nonwoven fabric according to the invention and preferably of the same spunbonded nonwoven material as the rest of the packaging wall or sidewall.
  • the monocomponent filaments when used for a weldable spunbonded web of the present invention, the monocomponent filaments it is recommended that at least 5% by weight of filler or calcium carbonate, preferably at least 7% by weight, expediently 7 to 25% by weight, preferably 8 to 22% by weight and very preferably 10 to 20% by weight of filler or to calcium carbonate as a filler. It is within the scope of the invention that the filler is homogeneously or substantially homogeneously distributed in the continuous filaments or is arranged according to the recommended embodiment at least on the surface of the continuous filaments or substantially on the surface of the endless filaments.
  • spunbonded nonwoven multi-component filaments or bicomponent filaments with a first or lower melting plastic component on the outer surface are used for the side wall and for the flat lid component and / or the flat bottom component of the packaging wall
  • a particularly preferred embodiment of the invention is characterized in that the spun nonwovens have for the flat lid component and / or for the flat bottom component a higher proportion of the first or lower melting plastic component than the spunbond or the spunbonded fabric for the side wall of the packaging wall.
  • the proportion of the arranged on the outer surface of the multicomponent or bicomponent filaments first or lower melting plastic component in the spunbonded nonwoven for the flat lid component and / or for the flat bottom component 1.2 times to 3.5 times, preferably 1.5 times to 2.5 times as large as the proportion of the first or lower melting plastic component in the multicomponent or bicomponent filaments of the spunbonded nonwoven or the spunbonded nonwoven for the side wall of the packaging.
  • the melting points of the two plastic components may also be the same or substantially the same.
  • a particularly preferred embodiment of the invention is characterized in that a spunbonded fabric or spunbonded nonwoven according to the invention is / are part of a package wall laminate and that the laminate preferably has at least one film, preferably a plastic film, in addition to the spunbonded nonwoven.
  • both the side wall and the flat lid component and / or the flat bottom component of the packaging wall can be designed as such a packaging wall laminate.
  • a highly recommended embodiment of the invention is characterized in that the film or the plastic film of the laminate is arranged on the inside of the packaging wall.
  • the packaging - in particular a packaging bag - has a flat lid component which is part of the packaging wall and at least one - suitably specified above - weldable spunbonded and that the spunbonded the lid component with the side wall or with the spunbonded material of the side wall of the packaging is firmly connected, in particular welded.
  • the spunbonded fabric of the cover component comprises multicomponent filaments or bicomponent filaments or consists essentially of multicomponent filaments or bicomponent filaments and that the mass ratio of the first or lower melting plastic component arranged on the outer surface of the filaments to the at least a second or higher melting plastic component 35: 65 to 50: 50 and preferably 40: 60 to 45: 55.
  • the melting points of the two plastic components can also be the same or substantially the same.
  • the packaging - in particular the packaging bag - at least a flat bottom component, which is part of the packaging wall and at least one - has a spunbond or packing spunbonded - in particular a specified in more detail above.
  • This spunbond or packaging spunbonded web forms the bottom component and / or is a component of the bottom component.
  • the at least one spunbonded fabric of the bottom component is preferably firmly connected to the side wall or with the spunbonded material of the side wall of the packaging, preferably welded.
  • the invention is based on the finding that a weldable spunbonded fabric or weldable packaging spunbonded fabric according to the invention can be produced in a simple, inexpensive and problem-free manner and can be processed into packages, in particular by being welded.
  • the welding temperatures required during welding of the spunbonded nonwovens can be significantly reduced in comparison with the processing measures known from practice. Above all, it is possible to work with a homogeneous welding temperature.
  • the invention is further based on the finding that in the spunbonded nonwoven fabric according to the invention for problematic problematic thin areas and thick areas can be largely avoided.
  • the invention is based on the finding that the above Benefits in particular by the combination of the filler according to the invention - in particular of the calcium carbonate - on the one hand with the realization of the inventive spunbond process on the other hand come about.
  • the invention is based on the finding that the filler according to the invention, in particular in the form of calcium carbonate, requires better weldability of the spunbonded nonwoven. It is assumed that the filler or the calcium carbonate on the one hand absorbs less heat than the associated plastic component and on the other hand at the same time has a higher thermal conductivity than the plastic. The result of this is that the filler or the calcium carbonate metered in can transfer the heat introduced to the plastic to be melted or softened, so that the associated plastic component can be melted in a targeted manner.
  • the invention is also based on the finding that a filler in the form of calcium carbonate improves the UV stability of the filaments or spunbonded nonwovens.
  • the optimum processability or weldability of a weldable spunbonded fabric according to the invention furthermore results from the advantageous filing quality of the filaments or the spunbonded fabric when the spunbond process according to the invention is realized.
  • a substantially better homogeneity of the spunbonded fabric is achieved in comparison to other known methods, and as a result the processing temperature or welding temperature for the spunbonded nonwovens according to the invention can be considerably reduced in comparison to known nonwoven fabrics.
  • the spunbonded nonwovens according to the invention and the packages produced therefrom have excellent strength. This applies both to the packaging wall itself and to connecting seams - in particular welded seams - between packaging wall regions.
  • the packaging wall and the connecting seams between the packaging wall regions are characterized by high mechanical resistance.
  • a tearing open of the packaging wall is barely observed in contrast to the packaging bags known from practice.
  • a weldable spunbonded fabric according to the invention or a packaging produced therefrom have further advantages. On the one hand, themaschineswandung can be cleaned without major problems, especially to be cleaned from the outside.
  • the packaging is also characterized by an attractive exterior visual appearance. Furthermore, in the case of a weldable spunbonded fabric produced according to the invention or in the case of the packaging produced therefrom, excellent barrier effects can be set, so that in particular an additional outer coating of the packaging is not required.
  • Fig. 1 is a packaging in the form of a packaging bag 1 for bulk materials - in particular for cement - shown.
  • the packaging wall of this packaging bag 1 has weldable spun nonwovens 2 according to the invention.
  • These spunbonded nonwovens 2 or packaging spunbonded nonwovens consist of filaments 3 made of thermoplastic material.
  • the continuous filaments 3 contain at least 3% by weight of a filler 4 in the form of calcium carbonate for improving the weldability of the filaments or the spunbonded fabric 2 and in particular for reducing the welding temperature during the thermal welding of the filaments or the spunbonded fabric 2.
  • the in Fig. 1 illustrated packaging bag 1 has a side wall 5 of a spunbonded fabric according to the invention, which was welded with its side ends 6 as it were to a tube.
  • a flat bottom component 7 in the form of a spunbonded fabric 2 according to the invention is arranged and welded to the side wall 5 of the packaging bag 1.
  • a flat lid component 8 in the form of a spunbonded nonwoven 2 according to the invention is arranged and with the side wall 5 welded.
  • a plastic film can still be arranged, however, in the embodiment according to Fig. 1 not shown.
  • the spunbonded nonwovens used for the side wall 5, the bottom component 7 and the cover component 8 of the packaging bag 1 preferably and in the exemplary embodiment consist of bicomponent filaments with a core-shell configuration (see also FIG Fig. 3 ).
  • the lower-melting plastic component is the sheath component 9 and the higher-melting plastic component is the core component 10.
  • the filler 4 in the form of calcium carbonate is preferred and in the exemplary embodiment only contained in the sheath component 9 of the bicomponent filaments.
  • Fig. 2 is a particularly preferred apparatus for producing the spunbonded nonwovens 2 (spunbond nonwovens) according to the invention.
  • the endless filaments 3 are first spun here by means of a spinnerette 11 and then passed through a monomer extraction device 12. Subsequently, the endless filaments 3 in the cooling device 13 are cooled.
  • the cooling device 13 preferably and in the exemplary embodiment has two cabin sections 14, 15 arranged one above the other or in the filament flow direction, from which cooling air of different temperature is introduced into the filament flow space. Following the cooling device 13, the endless filaments 3 pass into the intermediate channel 16 converging in the filament flow direction. An underrun channel 17 of the drawing device 18 adjoins this intermediate channel 16. This configuration is used for stretching the endless filaments 3.
  • the continuous filaments 3 emerging from the underrun channel 17 are then preferred and, in the exemplary embodiment, by two diffusers 19, 20 arranged one above the other or in the filament flow direction guided. Empfohlenenuit and in the embodiment, an ambient air inlet gap 25 is provided between the diffusers 19, 20, can penetrate through the ambient air.
  • the endless filaments 3 are then deposited on the filing belt 21 designed as a storage device for spunbonded fabric 2. The spunbonded nonwoven 2 is conveyed away in the machine direction M by means of the filing screen belt 21.
  • the spun-bonded nonwoven 2 is calendered or preconsolidated / solidified by means of a calender 22.
  • a calender roll 23 is provided with an engraving, not shown, and an interacting or associated calender roll 24 of the calender 22 is preferably and in the embodiment equipped with a smooth surface.
  • a spunbonded fabric 2 produced in the manner explained can be used simply and easily for a packaging wall (side wall 5 and / or bottom component 7 and / or cover component 8) of the packaging sack 1.
  • Fig. 3 are bicomponent filaments for a weldable spunbonded fabric 2 according to the invention.
  • the proportion of the core component 10 is greater than that of the shell component 9.
  • the filler in the form of calcium carbonate is in the bicomponent filaments according to FIG Fig. 3 contained exclusively in the shell component 9, which corresponds to the lower-melting plastic component.
  • the bicomponent filaments according to Fig. 3a are particularly suitable for spunbonded fabrics 2, which form the side wall 5 of a packaging bag 1.
  • the bicomponent filaments according to Fig. 3b a much higher proportion of the shell component 9 or the lower melting Plastic component on.
  • the filler is preferred and included in the exemplary embodiment exclusively in the shell component 9.
  • the bicomponent filaments according to Fig. 3b are especially suitable for spunbonded nonwovens 2 or spunbonded areas, which must be welded.
  • the sheath component 9 with the lower-melting plastic component provides sufficient welding material. The welding is preferably carried out with the proviso that only or substantially the shell component 9 melts or is welded.
  • the bicomponent filaments are suitable according to Fig. 3b especially for the floor component 7 to be welded and / or for the cover component 8 of a packaging bag 1 to be welded.
  • the mass ratio of the lower-melting plastic component (shell component 9) to the higher-melting plastic component (core component 10) may be in the embodiment according to Fig. 3a 20: 80 amount.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Claims (10)

  1. Filé-lié soudable (2), notamment filé-lié soudable, destiné à l'emballage, en qualité de composant d'emballages ou de sacs d'emballage (1), le filé-lié (2) comportant des filaments continus (3) en matière thermoplastique, les filaments continus (3) étant conçus sous la forme de filaments multicomposants, notamment de filament bicomposants, au moins un composant desdits filaments continus (3) comportant au moins 3 % en poids, de préférence au moins 4 % en poids d'au moins un agent de charge (4) destiné à améliorer la soudabilité du filé-lié (2) (notamment à faire baisser la température de soudage, lors du soudage thermique du filé-lié (2)), caractérisé en ce qu'un composant de la matière plastique placé en surface des filaments multicomposants ou filaments bicomposants
    fait preuve soit d'un point de fusion inférieur à celui d'un deuxième composant de la matière plastique des filaments et l'agent de charge (4) est contenu au moins dans le premier composant de la matière plastique, à point de fusion inférieur
    ou fait preuve d'un point de fusion identique à celui d'un deuxième composant de la matière plastique des filaments et l'agent de charge (4) est contenu uniquement dans le premier composant de la matière plastique à point de fusion identique.
  2. Filé-lié soudable selon la revendication 1, caractérisé en ce que les filaments continus ou au moins un composant des filaments continus (3) comporte(nt) de 4 à 25 % en poids de l'agent de charge (4), de préférence de 5 à 20 % en poids et de manière très préférentielle, de 6 à 15 % en poids de l'agent de charge (4).
  3. Filé-lié soudable selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que l'agent de charge (4) est un sel métallique, de préférence un sel d'un métal alcalino-terreux, de préférence un sel de calcium et de manière très préférentielle, un carbonate de calcium.
  4. Filé-lié soudable selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les filaments multicomposants ou les filaments bicomposants présentent une configuration âme/enveloppe et en ce que le composant de l'enveloppe (9) constitue de préférence le composant à point de fusion identique ou inférieur du filament.
  5. Filé-lié soudable selon la revendication 4, caractérisé en ce que l'agent de charge (4) est placé au moins dans le composant de l'enveloppe (9) des filaments bicomposants ou des filaments multicomposants.
  6. Filé-lié soudable selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le rapport massique du premier composant de la matière plastique à point de fusion identique ou inférieur au deuxième composant de la matière plastique à point de fusion plus élevé s'élève à de 10 : 90 à 35 : 65, de préférence à de 15 : 85 à 35 : 65, de manière préférentielle, à de 25 : 75 à 50 : 50 et de manière très préférentielle à de 30 : 70 à 45 : 55.
  7. Filé-lié soudable selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le filé-lié (2) est un filé-lié (2) calandré et au moins une surface du filé-lié (2) est calandrée lisse.
  8. Procédé, destiné à fabriquer un filé-lié (2) soudable ou un filé-lié destiné à l'emballage selon l'une quelconque des revendications 1 à 7, caractérisé en ce que des filaments continus (3) sont filés à l'aide d'une busette (11), refroidis dans un dispositif de refroidissement (13), étirés par la suite à l'aide d'un dispositif d'étirage (18) et déposés ensuite sur un dispositif de dépose, pour créer le filé-lié (2).
  9. Procédé selon la revendication 8, caractérisé en ce que le filé-lié (2) est calandré à l'aide d'une calandre (22), la calandre (22) présentant une surface de texturation de 10 à 90 % et de préférence de 18 à 30 % et de préférence la profondeur de texturation de la gravure de calandre étant de 0,1 à 0,6 mm, de préférence de 0,2 à 0,4 mm.
  10. Procédé selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que le nombre des points de gravure de la calandre (22) est supérieur à 30/cm2, de préférence supérieur à 40/cm2.
EP16159620.0A 2016-03-10 2016-03-10 Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage Active EP3216905B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DK16159620.0T DK3216905T3 (da) 2016-03-10 2016-03-10 Svejsbart spunbonded stof, fremgangsmåde til fremstilling af et svejsbart spunbonded stof og emballage
EP16159620.0A EP3216905B1 (fr) 2016-03-10 2016-03-10 Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage
JOP/2020/0179A JOP20200179A1 (ar) 2016-03-10 2016-03-10 التعبئة و التغليف
DK18206141.6T DK3480352T3 (da) 2016-03-10 2016-03-10 Emballage
EP18206141.6A EP3480352B1 (fr) 2016-03-10 2016-03-10 Emballage
US15/450,986 US20180002851A1 (en) 2016-03-10 2017-03-06 Weldable spunbond fabric, method of making same, and packaging made therefrom
MX2017003093A MX2017003093A (es) 2016-03-10 2017-03-09 Velo de hilatura soldable, procedimiento para la fabricacion de un velo de hilatura soldable y embalaje.
MX2020009501A MX2020009501A (es) 2016-03-10 2017-03-09 Velo de hilatura soldable, procedimiento para la fabricacion de un velo de hilatura soldable y embalaje.
CN201710268887.6A CN107177935B (zh) 2016-03-10 2017-03-10 可焊接的纺粘无纺布、用于制造可焊接的纺粘无纺布的方法和包装件
JOP/2017/0061A JO3652B1 (ar) 2016-03-10 2017-03-12 نسيج مغزول قابل للحام وطريقة تحضير نسيج مغزول قابل للحام والمحمول وتغليفه
US17/092,494 US20210054550A1 (en) 2016-03-10 2020-11-09 Method of making a spun-bonded nonwoven for packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16159620.0A EP3216905B1 (fr) 2016-03-10 2016-03-10 Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18206141.6A Division-Into EP3480352B1 (fr) 2016-03-10 2016-03-10 Emballage
EP18206141.6A Division EP3480352B1 (fr) 2016-03-10 2016-03-10 Emballage

Publications (2)

Publication Number Publication Date
EP3216905A1 EP3216905A1 (fr) 2017-09-13
EP3216905B1 true EP3216905B1 (fr) 2019-07-03

Family

ID=55527828

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Application Number Title Priority Date Filing Date
EP16159620.0A Active EP3216905B1 (fr) 2016-03-10 2016-03-10 Matiere non tissee pouvant etre soudee, procede de fabrication d'une matiere non tissee et emballage
EP18206141.6A Active EP3480352B1 (fr) 2016-03-10 2016-03-10 Emballage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18206141.6A Active EP3480352B1 (fr) 2016-03-10 2016-03-10 Emballage

Country Status (6)

Country Link
US (2) US20180002851A1 (fr)
EP (2) EP3216905B1 (fr)
CN (1) CN107177935B (fr)
DK (2) DK3216905T3 (fr)
JO (2) JOP20200179A1 (fr)
MX (2) MX2020009501A (fr)

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US6352948B1 (en) * 1995-06-07 2002-03-05 Kimberly-Clark Worldwide, Inc. Fine fiber composite web laminates
AU1718497A (en) * 1996-02-12 1997-09-02 Borealis As Particle-containing fibres
FR2749860B1 (fr) * 1996-06-17 1998-08-28 Freudenberg Spunweb Sa Nappe non tissee formee de filaments continus tres fins
JP2992505B2 (ja) * 1998-04-16 1999-12-20 難波プレス工業株式会社 オレフィン系樹脂複合材による中空体の表皮一体成形
US6752947B1 (en) * 1998-07-16 2004-06-22 Hercules Incorporated Method and apparatus for thermal bonding high elongation nonwoven fabric
US7338916B2 (en) * 2004-03-31 2008-03-04 E.I. Du Pont De Nemours And Company Flash spun sheet material having improved breathability
CA2586907C (fr) * 2004-12-17 2010-03-16 Exxonmobil Chemical Patents Inc. Melanges de polymeres et articles non tisses produits a partir de ceux-ci
CN101253289B (zh) * 2005-07-29 2010-09-08 纤维网公司 具有阻液性的双组分片材
US20070122614A1 (en) * 2005-11-30 2007-05-31 The Dow Chemical Company Surface modified bi-component polymeric fiber
DE102006020488B4 (de) * 2006-04-28 2017-03-23 Fitesa Germany Gmbh Vliesstoff, Verfahren zu dessen Herstellung und dessen Verwendung
DE102006044496A1 (de) * 2006-09-21 2008-04-17 Fiberweb Corovin Gmbh Leichtgewichtiges Spinnvlies mit besonderen mechanischen Eigenschaften
DE102007018579B4 (de) * 2007-04-18 2012-03-15 Abts- Advanced Bag Technology & Service Gmbh Zementsack und Herstellverfahren
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Also Published As

Publication number Publication date
DK3216905T3 (da) 2019-09-23
CN107177935A (zh) 2017-09-19
DK3480352T3 (da) 2020-04-27
EP3480352A1 (fr) 2019-05-08
US20210054550A1 (en) 2021-02-25
MX2020009501A (es) 2021-05-20
CN107177935B (zh) 2021-11-26
US20180002851A1 (en) 2018-01-04
JO3652B1 (ar) 2020-08-27
MX2017003093A (es) 2018-08-15
JOP20200179A1 (ar) 2017-06-16
EP3216905A1 (fr) 2017-09-13
EP3480352B1 (fr) 2020-02-12

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