AU2633797A - Method for manufacturing a protection cover - Google Patents

Method for manufacturing a protection cover

Info

Publication number
AU2633797A
AU2633797A AU26337/97A AU2633797A AU2633797A AU 2633797 A AU2633797 A AU 2633797A AU 26337/97 A AU26337/97 A AU 26337/97A AU 2633797 A AU2633797 A AU 2633797A AU 2633797 A AU2633797 A AU 2633797A
Authority
AU
Australia
Prior art keywords
cover
bobbin
knitting
knitted
thread
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.)
Abandoned
Application number
AU26337/97A
Inventor
Finn Kjaergaard
Johannes Nyvang Kristensen
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.)
Tytex AS
Original Assignee
Tytex AS
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 Tytex AS filed Critical Tytex AS
Publication of AU2633797A publication Critical patent/AU2633797A/en
Abandoned legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H55/00—Wound packages of filamentary material
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04—Carriers or supports for textile materials to be treated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
    • D06B5/16—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Magnetic Heads (AREA)
  • Details Of Aerials (AREA)
  • Air Bags (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

METHOD FOR MANUFACTURING A PROTECTION CO¬ VER.
Background of the invention.
The present mvention relates to a method for manufacturing a cover for the protection of substantially cylindrical bobbins from the reeling of the yam, duπng the succeeding treatment and transportation of the bobbin to the user
A need exists to protect yarns which are wound on bobbins, so that duπng the succeed¬ ing treatment and transportation, the bobbins are not damaged in such a way that the yam or at least the extreme part of the yam in a bobbin will be unfit for use
In particular, it is advisable to protect bobbins duπng the dyeing process of the yams
The yarns are wound onto special dyeing tubes, suitable for injectionspears in the dye- ing machine The dyeing process is effected by pressing the dyestuff with great pres¬ sure through the spears and out through the bobbin Hereby, there is a πsk that the extreme layers are damaged This will obstruct a subsequent unspooling Therefore, it will be necessary to discard a large or small part of the yams, which are on the extreme of the bobbin The dyestuff which is used, is a so called dye bath, meaning water, pig- ments, chemicals, etc
By the mounting of a protection cover on a bobbin, it is very important that the cover does not slide over the extreme layer of the bobbin, as this will also damage the ex¬ treme layers of yarn in the bobbin and thereby obstruct a subsequent unspooling At the same time, it is a requirement that a protection cover, after mounting, must afford great strength against the yarns, in order to ensure that said yarns he correctly in the bobbin, especially duπng the dyeing process After dyeing and transportation of a bobbin to a user, as e g a knitting mill, a weaving mill, or the like, the cover must be removable from the bobbin without the risk of damaging the extreme yam layers in the bobbin
Accordingly, there exist different requirements for a protection cover Duπng the mounting, the cover must be expandable to a considerably larger diameter than the diameter of the bobbin in order to avoid a mutual sliding between the cover and the bobbin, whereas a large elastical contraction intensity is requested during the subse¬ quent treatment and transportation It is the object of the present invention to provide a method for manufacturing a protection cover which satisfies the above requirements
According to the invention this is obtained by means of a method of the type mentioned above, characterized in that a tubular cover is knitted, said cover being provided for being loosely arranged on a bobbin, in that the cover is shrunk while arranged on the bobbin in order to shrink the cover around the bobbin in order to bear against the cyl- inder surface of the bobbin and an edge area of the end surfaces of the bobbin.
As the cover is manufactured by knitting, it will be possible, according to prior art, in itself, to obtain an elastical contractional intensity of such a cover, either because of the knitting itself, or by the use of knitted-in elastic threads The tubular cover can be manufactured by the cutting up of an endless tube into suitable lenghts or by the manufacturing of individual tubular covers of lengths necessary for the cover to lie around the cylinder surface of the bobbin and at least the edge areas of the end surfaces of the bobbin
After the knitting, the knitted tubular cover will appear very loose In this condition the tubular cover can be arranged over the bobbin It is noted that prior to this placing a steam treatment of the yarn could be carried out, in order to achieve a better firmness of the meshes which can facilitate the cutting up of an endless tube into suitable lengths When the tubular cover is arranged onto the bobbin the shrinking process takes place The shrinking process itself, or the fixation, is in itself a known finishing treatment of knitted fabric which is carried out before the knitted fabric is being used By starting to use the knitted fabric and placing the non-finished cover around the bobbin and thereby carrying out a finishing treatment of the cover, while it is arranged on the bobbin, the loosely mounted cover will be shrunk to such an extent that it can be brought into close contact with the bobbin This takes place without a mutual sliding between bobbin and cover, whereby there is no risk of damaging the outer layers of the bobbin. The protection cover can be used in connection with any bobbins for successive treat¬ ment and transportation. However, the protection cover will be especially advanta¬ geous for the purpose of bobbins which are to be dyed, subsequently. When the yam in the bobbin is to be dyed, it is common procedure to pre-treat the yams by carrying out a shrinking process, e.g. by means of autoclaving. If the yarns are not given such a pre¬ treatment and do not shrink until during the dyeing, there is a risk that discoloration occur in the dyed yarn. Therefore, the procedure according to the invention is espe¬ cially advantageous in situations, in which the yam in the bobbin is to be dyed, as one then finalizes the protection cover and pre-treats the yarn in the bobbin, in one and the same process When the bobbin is to be used, the cover can easily be removed, e.g. by being lifted off in an area of the bobbin and being cut up in the longitudinal direction.
Preferably textured high-elasticity yarns are used for the knitting of the cover, prefera¬ bly yarns of polyester type. Said yams are especially suitable for creating the loose mounting and subsequently a high elasticity after shrinkage. In order to facilitate the removal of the cover, when the bobbin is being used, a tearing thread is knitted up in the longitudinal direction of the cover. This tearing thread is preferably placed in im¬ mediate connection to a coloured thread or a thread of e.g. nylon which is not dyed, if dyeing of the bobbin is to be carried out. In this way it will be easy to detect the tearing thread. The tearing thread which preferably has a thickness less than 25 Dtex, and which is particularly less than 20 Dtex is very easily broken by an outwards directed traction in the area around the tearing thread. Hereby, a particularly easy method to remove the protection cover is achieved. As the tearing thread is easily broken by an outwards directed traction, the risk of damaging the outer layers of the bobbin does not arise, and the cover can be removed easily, without the need to be displaced along the cylinder surface of the bobbin which will give rise to a risk of damaging of the outer layers of the bobbin.
In order to obtain a sufficiently high elasticity in the end surfaces bearing against the end surfaces of the bobbins, it is preferred that a more dense knitting is made in said areas than in the central part of the cover. In stead or in addition, it is also possible to knit elastic threads into said areas. Said elastic threads are knitted across more needle rows in order to establish a larger elastic force in the end parts of the cover Such a force in the end parts of the cover is particularly advantageous when the bobbin is to be dyed As the dyestuff is pressed out through the bobbin at great force, there will be a risk that the end parts of the bobbin are pressed free off the end parts of the bobbin, where the force of the dyestuff is not reduced by passing through the layers of the bobbin
The cover is preferably manufactured by knitting on double Raschel machines Hereby it is possible to use the front and the reverse sides for making the tubular cover. After the manufacturing of the cover, it is exposed to a shrinkage of between 50% and
100%. preferably approx 75% Between 30% and 50%, preferably 40% of the shrink¬ age takes place during the autoclaving when the protection cover is arranged on the bobbin
Description of the drawing.
The invention will be described in more detail below, with reference to the attached drawing, on which fig 1 and 2 schematically show a protection cover before and after the shrinking around a bobbin, fig 3 is a partial knitting diagram which is illustrative of the knitting of a pro¬ tection cover on a double Raschel machine, and fig 4 shows another partial knitting diagram which is illustrative of the knitting of a protection cover on a double Raschel machine
In figure 1 a protection cover 1 is seen, said cover is placed loosely around a bobbin 2
The bobbin is substantially cylindrical around a central axis 3 The bobbin 2 has a cylin¬ der surface 4, and end surfaces 5 (only one is visible) In figure 2 the protection cover 1 is seen arranged on the bobbin 2, after shrinkage has taken place In this situation the yam cover 1 is bearing against the cylinder surface 2 and edge areas 6 of the end sur- faces 5 Furthermore, in figures 1 and 2, a tearing thread 7 is schematically illustrated. The tearing thread 7 is knitted into the protection cover 1 in the longitudinal direction thereof. When an outwards directed traction is performed in the cover in the area at the tearing thread 7, said thread will be torn, and hereby the tubular protection cover 1 will be divided in the longitudinal direction. Subsequently, the protection cover 1 can be removed from the bobbin 4, without the risk of damaging the extreme yam layers in the bobbin.
In figure 3 a partial knitting diagram is seen. It is noted that the shown knitting diagram only shows the front of a double Raschel machine. A similar knitting will be made on the reverse side of the machine.
At area 8 the area of the end parts of a cover 1 is indicated. In the area 8 elastic threads 9 have been included, said threads are sequenced across a number of needle rows. In area 10, which illustrates a central part of a cover 1, the elastic threads extend substan¬ tially rectilinear. Due to said knitting, a larger amount of elastical contraction force is obtained in the end parts of the cover 1, which are arranged for being drawn around the end surfaces 5 of the bobbin 4. The elastic threads 9 are preferably elastane threads.
In figure 3 a tearing thread 1 1 is seen. A dyed yam 12 is knitted up in immediate con¬ nection with the tearing thread 11. Hereby it is easy to identify the tearing thread 11 , when a cover 1 is to be removed from a bobbin 4 when the user starts using the yam.
The knitting in the areas 8 of the end parts of each cover 1 is knitted more dense than the knitting in the area 10 of the central part of the cover. This does not show directly from the knitting diagram but is established by controlling the knitting machine in a known way.
In figure 4 another knitting diagram is shown. In said knitting diagram knitting is shown both at the front 13 of the machine and at the reverse side 14 of the machine.
Said knitting diagram illustrates areas 8 and 10 of the end parts of the cover 1 and the central part, respectively. In said figure yams 15, 16 are illustrated, which are used when knitting together the front and the reverse sides in order to form the tubular cover 1 For the sake of clearness the threads 9 have been left out
In practice, it will also be possible to leave out the elastic threads 9, provided that a sufficiently dense knitting is used in the areas 8 of the end parts of the cover 1

Claims (1)

  1. 97/40226 P TDK 7 1
    1 A method for manufacturing a cover for the protection of substantially cylindrical bobbins from the reeling of the yam, during the succeeding treatment and transporta- tion of the bobbin to the user, characterized in that a tubular cover is knitted, said cover being provided for being loosely arranged on a bobbin, in that the cover is shrunk while arranged on the bobbin in order to shrink the cover around the bobbin in order to bear against the cylinder surface of the bobbin and an edge area of the end surfaces of the bobbin
    2 A method according to claim 1, characterized in that yams used for the knitting of the cover are selected among textured high elasticity yarns, preferably poly¬ ester yarns, and that a tearing thread is knitted in the longitudinal direction of the cover, preferably of a thickness which is less than 25 Dtex and particularly less than 20 Dtex
    3 A method according to claims 1 or 2, characterized in that a tube of endless length is knitted and that the tube is steamed and cut up into suitable lengths in order to form the covers to be arranged on the bobbins
    4 A method according to any of the preceding claims, characterized in that the knitting is done on double Raschel machines
    5 A method according to any of the preceding claims, characterized in that the shrinking is made by means of autoclaving, and that a simultaneously shrinking process of the tube and the yam in the bobbin is carried out.
    6 A method according to claim 5, characterized in that a total shrinking proc¬ ess of the tube between 50% and 100%, preferably 75%, and that between 30% and 50%, preferably 40% takes place during the autoclaving of the bobbin and the cover 7 A method according to any of the preceding claims, characterized in that elastic threads are knit into the areas of the end parts of each cover, said threads being knitted across a number of needle rows in order to obtain a larger elastic force in the end pans of the cover which are arranged for bearing against the edge areas of the end surfaces of the bobbins.
    8 A method according to any of the preceding claims, characterized in that a more dense knitting is used in the areas of the end parts of each cover than in the cen¬ tral part of the cover.
    9 A method according to any of the claims 2-8, characterized in that a dyed thread is used, said thread being placed in immediate connection with the tearing thread.
AU26337/97A 1996-04-18 1997-04-17 Method for manufacturing a protection cover Abandoned AU2633797A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK455/96 1996-04-18
DK045596A DK45596A (en) 1996-04-18 1996-04-18 Method of manufacturing a protective sleeve
PCT/DK1997/000169 WO1997040226A1 (en) 1996-04-18 1997-04-17 Method for manufacturing a protection cover

Publications (1)

Publication Number Publication Date
AU2633797A true AU2633797A (en) 1997-11-12

Family

ID=8093758

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26337/97A Abandoned AU2633797A (en) 1996-04-18 1997-04-17 Method for manufacturing a protection cover

Country Status (12)

Country Link
EP (1) EP0912790A1 (en)
JP (1) JP2000510422A (en)
KR (1) KR20000005507A (en)
CN (1) CN1216590A (en)
AU (1) AU2633797A (en)
BR (1) BR9708851A (en)
CA (1) CA2252388A1 (en)
CZ (1) CZ333798A3 (en)
DK (1) DK45596A (en)
PL (1) PL329412A1 (en)
TR (1) TR199802086T2 (en)
WO (1) WO1997040226A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5342798B2 (en) * 2008-03-31 2013-11-13 セーレン株式会社 Protective material and method for producing the same
JP2012082529A (en) * 2008-12-27 2012-04-26 Seiren Co Ltd Coating protective material
CN105822682A (en) * 2016-04-27 2016-08-03 成都绿迪科技有限公司 Coupling transition device
CN107776984A (en) * 2017-10-18 2018-03-09 肇庆高新区国专科技有限公司 A kind of heat shrinkage film packing method and heat shrink films
KR102342197B1 (en) * 2020-10-07 2021-12-23 (주)아셈스 Edge Sealing Structure for Waterless Dyeing Process
KR102577579B1 (en) 2021-06-18 2023-09-12 한국생산기술연구원 Automatic peel test device for overlap welding joints

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1526771A (en) * 1964-02-17 1968-05-31 Advanced yarn winding for dyeing processing and knitting and weaving of synthetic yarns
US3425110A (en) * 1967-07-20 1969-02-04 Logan Inc Jonathan Method of stabilizing bulked continuous filament thermoplastic yarn
DE2713239C2 (en) * 1977-03-25 1986-05-28 Becker, Hubert, 5100 Aachen Process for the treatment of textile goods
DE3717495C1 (en) * 1987-05-23 1988-06-30 Becker Josef Process for the treatment of threadlike textile material

Also Published As

Publication number Publication date
DK45596A (en) 1997-10-19
CZ333798A3 (en) 1999-02-17
CN1216590A (en) 1999-05-12
PL329412A1 (en) 1999-03-29
TR199802086T2 (en) 1999-01-18
CA2252388A1 (en) 1997-10-30
JP2000510422A (en) 2000-08-15
KR20000005507A (en) 2000-01-25
EP0912790A1 (en) 1999-05-06
WO1997040226A1 (en) 1997-10-30
BR9708851A (en) 2000-01-04

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