Cutting Points – Needles For Stitching Leather And Other .
Cutting points –Needles for stitching leatherand other materialsNarrow cross point “S”Diamond point “DI”Narrow wedge point “P”Reverse twist spear point “VR”Reverse twist point “LR”Round point with smalltriangular tip “SD1”Wide reverse twist point “LBR”Half triangular point “DH”Twist point “LL”Triangular point “D”
Cutting points – Needles for stitching leather and other materialsNarrow cross point “S” or “N CR”Point symbol:Seam appearance:Threading directionMaterials:Suitable for all types of leatherProduct: Cutting point witha lens-shaped cross-section.The incision is made at right anglesto the threading direction.Result: A very straight seamApplications: Footwear manufactureNarrow wedge point “P” or “NW”Point symbol: M anufacture of bags,suitcases, etc. with coarseornamental seams Manufacture of belts and straps Manufacture of car seatsSeam appearance:Threading directionNarrow wedge point “PCL”Narrow wedge point “PCR”Product: Cutting point witha lens-shaped cross-section.The incision is made inthreading direction.Result: A very strong seamReverse twist point “LR” or “R TW”Materials:Suitable for all types of leatherApplications: Footwear manufacture Manufacture of bags,suitcases, accessories Manufacture of car seatsHighlight:The twist ensures that, when theneedle emerges from the materialbeing sewn, the thread is protectedin the twist groove and is thus notPoint symbol:drawn over the edge of thegroove and eye or over thecutting edge and not damaged.CL: Left twist groove below eyefor hooks positioned to theright of the needle.CR: Right twist groove below eyefor hooks positioned to the leftof the needle. It is particularlyuseful as the lefthand needleon a twin needle lockstitchmachine.Seam appearance:Threading directionProduct: Cutting point with alens-shaped cross-section. Theincision is made at a 45 angleto the threading direction.Result: A decorative seaminclined slightly towards the leftMaterials:Suitable for all types of leather Manufacture of bags, suitcases Manufacture of car seatsApplications: Clothing industry Footwear manufactureHighlight:The best needle fordecorative seamsWide reverse twist point “LBR”Point symbol:Seam appearance:Threading directionProduct: Cutting point with alens-shaped cross-section. Theincision is made at a 45 angleto the threading direction. Thecutting effect is achieved beyondthe diameter of the needle.Result: A raised, decorative seaminclined towards the leftMaterials:Suitable for all types of leatherApplications: Clothing industry Manufacture of bags, suitcases Upholstery manufactureHighlight:Recommended for decorativeseams which characterizethe design
Cutting points – Needles for stitching leather and other materialsTwist point “LL” or “TW”Point symbol:Seam appearance:Threading directionTwist point “LLCR”Materials:Suitable for all types of leatherProduct: Cutting point with alens-shaped cross-section. Theincision is made at a 135 angleto the threading direction.Result: A slightly recessed,straight seamApplications:LL point: Footwear manufacture Manufacture of bags, suitcases Particularly suitable forshoe repairsDiamond point “DI” or “DIA”Point symbol:LLCR point: For the manufactureof footwear, in order to achievethe same seam appearance withthe hook positioned to the left ofthe needle as achieved using theLR point in conjunction with ahook positioned to the right ofthe needle.Seam appearance:Threading directionProduct: Cutting point with arhombic cross-section. The centeredincision is made at right angles tothe threading direction. The seamappearance corresponds to thatachieved with the narrow cross point(S point);however, the four cutting edgesof the DI point allow heavy, hardmaterial to be pierced more easily.Result: A very straight,recessed seamMaterials:Suitable for heavy, dry, hard leatherReverse twist spear point“VR” or “R TW SP”Point symbol:Applications: Footwear manufacture Manufacture of bags, suitcasesHighlight: Absolutely precise and tidyseam appearance Correct stitch appearance No needle deflectionSeam appearance:Threading directionProduct: Cutting point witha rhombic cross-section. Theincision is made at a 45 angleto the threading direction.Result: A seam inclined slightlytowards the leftBetter cutting effect than thecomparable reverse twist point(LR point)Materials:Suitable for hard, dry leatherApplications: Footwear manufacture Manufacture of bags,suitcasesHighlight:Due to the four cutting edges, a correct stitch appearance no needle deflectionis achieved.Point shapeThreadingdirectionThe shown point symbols and seam appearance refer to laterally threaded needles.When using machines with needles threaded from the front, the seam appearance might change significantly.Seam direction
Cutting points – Needles for stitching leather and other materialsRound point with smalltriangular tip “SD1” or“TRI TIP”Point symbol:Seam appearance:Threading directionProduct: Round point with a verysmall, triangular cross-section. Thesmall triangular tip cuts approx.10% of the stitch hole, with theremaining 90% being displacedby the conical round point(R point).Result: A straight seam A tidy seam appearance Correct stitch appearanceand less needle deflectionthan with a round point(R point) Smaller incision than whenusing a cutting pointMaterials: Fine leather Clothing made of leatherand imitation leather Thin, synthetic leather materials Materials coated with PVC/PUR,e.g. tarpaulins, tents, coatedtable clothsHalf triangular point “DH”Point symbol:Highlight:Multidirectional sewing:The stitch appearance remainsthe same in all sewing directionswhen using multidirectionalsewing techniques (programmablesewing machines).Applications: Stitching leather Stitching plastic Stitching hard fibres Stitching filmsSeam appearance:Threading directionProduct: Cutting point witha triangular cross-section;smaller than D point.Result: A straight seamMaterials: Composites, e.g. laminatedmaterial together with plasticsections Plastic sections Hard pressboard Tarpaulin material Tent canvasTriangular point “D” or “TRI”Point symbol:Applications: Stitching upholstery Manufacture of vehicle interiors Manufacture of tarpaulins,tents, awningsSeam appearance:Threading directionProduct: Cutting point witha triangular cross-section.Result: A straight seamMaterials:Suitable for hard, dry leatherApplications: Manufacture of footwear,especially for heavy footwear(e.g. safety shoes) Stitching upholstery Stitching plastics, cardboard,heavy pressboard, paperHighlight:The best cutting effect of allcutting points
Cutting points – Needles for stitching leather and other materialsSeam appearancePoint shapeNarrow wedge point withleft twist groove below eyePCRNarrow wedge point withright twist groove below eyeSNarrow cross pointDIDiamond pointLRReverse twist pointVRReverse twist spear pointLBRWide reverse twist pointLLTwist pointCoarse/normal seamsDTriangular pointCross seamsDHHalf triangular pointEmbroideryRNormal round pointSpecial features,e.g. appliquéSD1Round point with smalltriangular tipSD1Round point with smalltriangular tipRNormal round pointSD1Round point with smalltriangular tipDTriangular pointDHHalf triangular point1 cm1 cm11cm1cm1cm1cmcm11 cmcmNarrow wedge pointPCL1 cmPFine ornamental seamscm11 cmcm1 cm1 cm11cmVery strong seams1 cm11cm1cm1cm1cmcm11 cmcm1 cm1 cmScm11 cmcm1 cm1 cm11cmVery straight seams1 cmCoarse ornamental seams1 cm1 cm11cm1cm1cm1cmcm11 cmcmNormal seamscm11 cmcm1 cm1 cm11cmP/PCL/PCRDIVR1 cm1cm1cm1cmcm11 cmcm1 cm11cm1 cmLBR1 cm11cm1cmcm11 cmcmcm1 cm11cm1 cmcm11 cmcm1 cm1 cm11cmVery straight seamscm11 cmcm1 cm1 cm11cm1 cm1cm1cm1cmcm11 cmcm1 cm11cm1 cmLRcm11 cmcm1 cm1 cm11cm1 cm1cm1cm1cmcm11 cmcm11cm1 cmtopstitch seams)1 cm(ornamental seams/cm11 cmcm1 cm1 cm11cmDecorative seams1 cm1cm1cmcm11 cmcmcm1 cm111cm1 cmcm11 cmcm1 cm1 cm11cmR1 cmcm1cmcm11 cm1 cm1cm1cm11cmDH1 cm1 cmcm1cmcm1cm11 cm1 cm1cm11cm1 cmcm11 cmcm1 cm1 cm11cmDcm11 cmcm1 cm1 cm11cm1 cm1cm1cmcm11 cmcm1cm1 cm11cm1 cmcm11 cmcm1 cm1 cm11cmLLSD11 cm1cm11 cmcmcm1cmcm1 cm111cm1 cmcm11 cmcm1 cm1 cm11cmMultidirectional sewingSD11 cm1cmcm1cmcm11 cm1 cm1cm11cm1 cmRcm11 cmcm1 cm1 cm11cm1 cm1cmcmcm1cmcm11 cm1 cm111cm1 cm– Garmentscm11 cmcm1 cm1 cm11cmMaterial combinations,composites:SD1D1 cm1cmcm1cmcm11 cm1 cm1cm11cm1 cmcm11 cmcm1 cm1 cm11cm1 cm1cmcm1cmcm11 cmcm1 cm111cm– Industrial sector1 cmNote:The seam appearance refersto needles threaded lateral ly. It might change signifi cantly when using machineswith needles threaded fromthe front.Applicationcm11 cmcm1 cm1 cm11cmChoosing the point shape:The point shape is deter mined by the applicationand the desired seamappearance.DH
Cutting points – Needles for stitching leather and other materials1. Application/sewing threadThe application and thesewing thread (type andsize) determine theneedle size.2. Material and materialpropertiesThe harder and thickerthe material, the thickerthe needle must be.Continuous filamentPolyamide 6.6 (Nylon)ApplicationThread sizePolyesterNeedle sizeThread 0-121003065-709-10Stay seams(heel seams)Core spunPolyester/CottonApplicationThread sizeCoarsePolyester/PolyesterNeedle sizeThread -25024-27seams6500180-20024-25No*Needle 4-16803890-10014-16803880-9012-14* No Label number Unit of size in g/1000 mtex(e.g. 75 tex 1000 m yarnweigh 75 g)600500760If you have specific ques tions concerning thesethreads, please ask yourthread manufacturer.568/9seamsSCHMETZ Tip:These tables only includethe most common sewingthreads. Cotton threads,sewing silk and embroiderythread have been omittedfor the sake of clarity.Needle sizeNo*Stay seams(heel -14For further information on cutting points, please contact:FERD. SCHMETZ GMBH, Bicherouxstraße 53–59, 52134 Herzogenrath, GermanyTel. 49 (0)2406 / 85-0, Fax 49 (0)2406 / 85-222, info@schmetz.com, www.schmetz.comCLICK HERE to order these special-order needles. SCHMETZ · Subject to technical modifications · 08/2019 - ENThe right needle size:Two essential criteria mustbe taken into account:
May 10, 2019 · Suitable for all types of leather Materials: Suitable for all types of leather Materials: Suitable for all types of leather . The best needle for decorative seams Highlight: Recommended for decorative seams which characterize the design Applications: Footwear manufacture . Stitching upholstery Stitching plastics, cardboard .
2b 2 points 3 2 points 4 6 points 5 4 points 6 2 points 7 4 points 8 3 points subtotal / 26 Large Numbers and Place Value 9 3 points 10 2 points 11 3 points 12 3 points 13 2 points 14 3 points 15 3 points 16 4 points subtotal / 23 Multi-Digit Multiplication 17 6 points 18 3 points 19 8 points 20 3 points 21a 3 points 21b 2 points
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