Classifications

• • 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
  • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
• • 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
  • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
  • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers

Definitions

• the invention relates to a method for manufacturing spiral plastic bristles by extruding Monofilament.
• Bristles for brush goods of any kind unfold their Brush effect first and foremost through the free ones Ends of the bristles that tear open the soiled area and remove the dirt by scratching and scraping. At the bristles fold and become stronger effective with its outer surface. You slide more stroking and sliding across the surface with a gentler Effect.
• profiled bristles are also known, in which the Profile edges when folding the bristle a more scraping Make an impact.
• bristles for car wash brushes known with a spiral profile (DE-U-93 19 214, DE-A-1 140 901) with a very large slope the spiral. This should in turn be the profiled Bristles are strongly scraped, by engaging only part of the helix locally is.
• Such a bristle with a steep spiral should pass through Twisting a monofilament with an essentially star shape Cross-section can be obtained.
• a stable bristle good recovery ability remains open at this state of the art.
• the invention has for its object a method to propose, with the help of spiral bristles in same and predictable quality as conventional Bristles can be produced inexpensively.
• This object is achieved according to a first variant of the invention solved in that a monofilament with one of the Circular deviating cross-section extruded and at Peeling pre-stretched while reducing its cross-section, then stretched further on at least part of its length to a spiral Bristle material twisted and through after twisting thermal shrinkage is stabilized.
• the pre-stretching takes place immediately when the Monofilaments on the extruder, while the further stretching after cooling, e.g. after running the monofilament done by a water bath.
• profiled Get bristle with strength properties such as from conventional, non-profiled bristles are known.
• the subsequent twisting around the monofilament axis is made from the monofilament because of its circular shape deviating cross-section a spiral or helical Get bristle material. That way The resulting spiral becomes the one that towers above the circular shape Get the profile of the monofilament and can either extend over the entire length of the bristle or else be formed only over part of its length.
• the Stabilization after twisting can be done in a known manner by exposure to an elevated temperature or by Store the wound, spiral bristle material Room temperature or a higher temperature done to the bristle material in the desired Fix shape.
• the monofilament is preferably after further stretching and before twisting by thermal shrinking pre-stabilized. During this pre-stabilization heat the monofilament and then cooled so that the monofilament shrinks. In connection with further stabilization after twisting ensures that the twist of the monofilament is permanent is fixed.
• the monofilament produced by extrusion can be one have oval or polygonal cross-section.
• oval cross section with a drill center in the A bristle material is created with two over the axis Surface running coils.
• a polygonal Cross section results in a number corresponding to the number of corners Number of coils.
• a bristle material is created with spirals, the height of which corresponds to the height of the ribs is preselectable, so that comparative to the bristle deep channels arise.
• the at least one rib or at least an edge of the polygonal cross-section changes color differentiated from the core of the monofilament by different colored Plastics are extruded, e.g. one in Core white or transparent bristle with a spiral in a signal color. If pigments are used for coloring, the helix has a harder and at the same time abrasive Surface on.
• the core and the at least one preferably exist Rib or at least one edge of the polygonal cross section made of different plastics. So can the resulting spiral to certain operating conditions, be adjusted in particular with regard to their hardness. For example, with ribs made of relatively soft material dirt is carefully removed from carpets. A allows relatively hard material for the rib or ribs e.g. efficient cleaning in dental care the teeth. An intense brushing effect, for example Rust can be removed with ribs made of abrasive material be achieved.
• the user can a different color design of the core and the ribs an indication of the brushing properties of the given brush.
• the bristles must have a predetermined rigidity.
• a The stiffness can be adjusted in a preferred embodiment achieve the invention when the monofilament a soul, a cloak of different that surrounds it Plastics is extruded. Through the Material selection can be typical of the soul, for example Properties of a bristle in terms of bending ability own while the coat is for the intended use most suitable properties.
• the ribs running on the jacket can either from its material or a different material consist.
• Another solution to the problem of the invention is extrusion of monofilaments with, for example, circular Cross section from.
• Such a process stands out characterized in that at least two monofilaments when pulling off pre-stretched while reducing their cross-section and then stretched further, then into a spiral Bristle material twisted together and after Twisting stabilized by thermal shrinking become.
• the monofilaments can be stretched further and before twisting by thermal Shrinkage can be stabilized.
• This stabilization too can by exposure to elevated temperature or by Store the wound bristle material at room temperature or an elevated temperature.
• the brushing effect depends, among other things, on the measure the twist based on the effective length of a bristle or the bristle material, i.e. from the pitch of yourself due to the helix forming the twist. It has shown that the pitch of the helix is not greater than that double the useful length of the bristle should be so that along a usable length of 180 ° around the useful length is. However, the helix preferably has a smaller one Pitch that is up to the size of the diameter of the Bristle material can be. With toothbrushes an incline proved to be favorable, at least two, preferably three to five turns per cm of bristle length available.
• Monofilament or the monofilament made of an elastic plastic consist.
• the Bristle material produced bristles in the longitudinal direction stretch which entails a reduction in their diameter brings so that, for example, when used in toothbrushes or as an interdental cleaner in an interdental space introduced, but do not get stuck in it can.
• the bristle expands and can also twist up.
• the bristle material produced according to the invention is included special advantages with a variety of brushes applicable. So they are between those on the surface existing helixes in particular suitable for the dirt loosened during brushing record and save and only at the end of the brushing section to deliver. This beneficial effect is coming for example with carpet brushes, vacuum cleaner brushes, Polishing brushes etc. for effect.
• the different cleaning effects the bristle ends and the flanks of the spirals in in many cases combine them advantageously.
• the untwisted section has smaller cross-sectional dimensions and can therefore be easier to insert into an interdental space. Introducing can be further facilitated if the untwisted Subarea at least in sections for example, cross-section flattened by pressing having.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Brushes (AREA)
• Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7771987

Family Applications (1)

Country Status (29)

Cited By (1)

Families Citing this family (26)

Family Cites Families (11)

• 1995
  • 1995-09-13 DE DE19533816A patent/DE19533816A1/de not_active Ceased
• 1996
  • 1996-04-09 UA UA98041878A patent/UA51674C2/uk unknown
  • 1996-09-04 ES ES96931013T patent/ES2140130T3/es not_active Expired - Lifetime
  • 1996-09-04 RU RU98107323A patent/RU2145367C1/ru not_active IP Right Cessation
  • 1996-09-04 CZ CZ1998703A patent/CZ287818B6/cs not_active IP Right Cessation
  • 1996-09-04 CA CA002230799A patent/CA2230799C/en not_active Expired - Fee Related
  • 1996-09-04 TR TR1998/00456T patent/TR199800456T1/xx unknown
  • 1996-09-04 PL PL96325522A patent/PL182726B1/pl not_active IP Right Cessation
  • 1996-09-04 US US09/029,899 patent/US5985192A/en not_active Expired - Lifetime
  • 1996-09-04 HU HU9901181A patent/HU220740B1/hu not_active IP Right Cessation
  • 1996-09-04 NZ NZ330177A patent/NZ330177A/xx unknown
  • 1996-09-04 CN CN96196937A patent/CN1077154C/zh not_active Expired - Lifetime
  • 1996-09-04 BR BR9610578A patent/BR9610578A/pt not_active IP Right Cessation
  • 1996-09-04 PT PT96931013T patent/PT874925E/pt unknown
  • 1996-09-04 WO PCT/EP1996/003874 patent/WO1997010374A1/de not_active Application Discontinuation
  • 1996-09-04 DE DE59603889T patent/DE59603889D1/de not_active Expired - Lifetime
  • 1996-09-04 AT AT96931013T patent/ATE187506T1/de not_active IP Right Cessation
  • 1996-09-04 RO RO98-00611A patent/RO119370B1/ro unknown
  • 1996-09-04 SK SK249-98A patent/SK281340B6/sk unknown
  • 1996-09-04 KR KR1019980701623A patent/KR100666766B1/ko not_active IP Right Cessation
  • 1996-09-04 IL IL12338796A patent/IL123387A/en not_active IP Right Cessation
  • 1996-09-04 AU AU69867/96A patent/AU700069B2/en not_active Ceased
  • 1996-09-04 EP EP96931013A patent/EP0874925B1/de not_active Expired - Lifetime
  • 1996-09-04 JP JP53282596A patent/JP3792721B2/ja not_active Expired - Lifetime
  • 1996-09-06 IN IN1587CA1996 patent/IN188936B/en unknown
  • 1996-09-07 TW TW085110958A patent/TW379262B/zh not_active IP Right Cessation
  • 1996-09-11 AR ARP960104320A patent/AR003562A1/es active IP Right Grant
  • 1996-09-12 ZA ZA967702A patent/ZA967702B/xx unknown
• 1998
  • 1998-03-12 NO NO19981084A patent/NO310664B1/no unknown
• 2000
  • 2000-03-08 GR GR20000400596T patent/GR3032901T3/el not_active IP Right Cessation

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