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340:. This paper needs a high tensile strength in the machine direction, which is the axial direction of the cartridges. In the cross direction, the cartridge is supported by the gun-pipe, but a sufficient elongation is needed. The body of the cartridge is wound of a kraft paper of 80–120 g/m, which is further covered by an outer sheet of 60–80 g/m with colour and printing.
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to give porosity and elasticity. Microcrepping is done by drying with loose draws allowing it to shrink. This causes the paper to elongate 4% in the machine direction and 10% in the cross direction without breaking. Machine direction elongation can be further improved by pressing between very elastic
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Spinning kraft paper is an especially strong type of kraft paper with relatively low grammage (40 g/m). This paper requires the best possible machine direction strength and cross machine elongation. This is done by high fiber orientation on the paper
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Sack kraft paper, or just sack paper, is a porous kraft paper with high elasticity and high tear resistance, designed for packaging products with high demands for strength and durability.
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with the fibers, whereas kraft pulping removes most of the lignin present originally in the wood. Low lignin is important to the resulting strength of the paper, as the
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to make very white pulp. Fully bleached kraft pulp is used to make high quality paper where strength, whiteness, and resistance to yellowing are important.
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The kraft process can use a wider range of fiber sources than most other pulping processes. All types of wood, including very resinous types like southern
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Maintaining a high effective sulfur ratio or sulfidity is important for the highest possible strength using the kraft process.
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are added to even further improve the strength. Both white and brown grades are made. Sack paper is then produced on a
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Absorbent kraft paper is made with controlled absorbency (i.e. a high degree of porosity). It is made of clean low
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and high tear resistance, designed for packaging products with high demands for strength and durability.
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Kraft paper is produced on paper machines with moderate machine speeds. The raw material is normally
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meaning "strength" in this context, due to the strength of the paper produced using this process.
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A paper sack can be made of several layers of sack paper depending on the toughness needed.
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518:. Papermaking Science and Technology. Vol. 18. Finland: Fapet Oy. pp. 121–122.
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Candy wrapping paper and twisting paper are thin 30–40 g/m kraft papers and are mostly
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more, leading to weaker fibers, and mechanical pulping processes leave most of the
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Paper or paperboard produced from chemical pulp produced in the kraft process
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cylinders causing more microcrepping. The paper may be coated with
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coatings are also water resistant but allow better recyclability.
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Normal kraft paper is strong and relatively coarse. It has high
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for cement, food, chemicals, consumer goods, flour bags etc.
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Kraft pulp is darker than other wood pulps, but it can be
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kraft and has to have a good uniformity and formation.
238:. The long fibers provide the paper its strength and
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nature of lignin interferes with the formation of the
19:"Craft paper" redirects here. Not to be confused with
618:. US Department of Agriculture. 1985. Archived from
580:"Recyclable zein-coated kraft paper and linerboard"
56:. Unsourced material may be challenged and removed.
336:Hunting cartridge paper is a kraft paper used in
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255:(PE) to ensure an effective barrier against
539:Hubbe, Martin A.; Lucia, Lucian A. (2007).
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380:Electrical insulation in large oil-filled
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223:Woodchips used for kraft paper production
116:Learn how and when to remove this message
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267:, although recyclability is hindered.
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643:Encyclopedia of Packaging Technology
169:) is a porous kraft paper with high
54:adding citations to reliable sources
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400:An inexpensive material for lining
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428:As a wrapping for the French dish
373:As a plastic-hazard-free paper in
299:can be used in the kraft process.
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230:for sack paper is made from
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558:10.15376/biores.2.4.534-535
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200:between cellulose (and
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516:Paper and Board grades
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240:wet strength chemicals
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1206:Corrugated fiberboard
963:Electrical insulation
816:Thomas Francis Carter
448:Corrugated fiberboard
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132:A roll of kraft paper
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671:at Wikimedia Commons
613:"The Southern Pines"
491:Derived from German
50:improve this article
1527:Packaging materials
406:The base paper for
397:and other packaging
578:Parris, N (2002).
422:, for fabricating
387:Paper grocery bags
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65:"Kraft paper"
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61:Find sources:
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51:
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39:This article
37:
33:
28:
27:
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1438:Papier-mâché
1433:Paper towels
1352:Soda pulping
1269:Wet strength
1070:Photographic
1012:
943:Cotton (rag)
916:Construction
642:
641:Yam, K. L.,
627:. Retrieved
620:the original
607:
595:. Retrieved
590:
586:
573:
562:. Retrieved
548:
545:BioResources
544:
534:
515:
492:
487:
458:Manila paper
430:Gigot bitume
420:World War II
382:transformers
360:Applications
286:
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276:
273:
253:polyethylene
248:microcrepped
226:
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106:October 2011
103:
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48:Please help
43:verification
40:
1468:Paper money
1428:Lined paper
1347:Papermaking
1280:and process
1278:Manufacture
1254:Paper sizes
983:Greaseproof
968:GenkĹŤ yĹŤshi
821:Dard Hunter
753:Originators
721:Papermaking
669:Kraft paper
375:paper sacks
215:Manufacture
194:hydrophobic
137:Kraft paper
21:paper craft
1516:Categories
1405:Paper mill
1332:Organosolv
1211:Fiber crop
1201:China clay
1160:Waterproof
1060:Paperboard
938:Correction
931:Carbonless
779:Developers
629:2007-09-13
597:4 November
593:(3): 24–29
564:2015-02-02
479:References
468:Paper sack
424:drop tanks
171:elasticity
167:sack paper
149:paperboard
76:newspapers
1458:Notebooks
1443:Cardboard
1226:Wood pulp
1194:Materials
1170:Wood-free
1145:Wallpaper
1140:Tree-free
1080:Red rosin
1065:Parchment
1050:Onionskin
1045:Newsprint
906:Cartridge
901:Cardstock
896:Cardboard
846:Acid-free
463:Paper bag
408:sandpaper
395:envelopes
303:Qualities
228:Wood pulp
186:cellulose
180:; acidic
165:(or just
1491:Category
1448:Clothing
1366:Industry
1302:Deinking
1292:Calender
1249:Grammage
1135:Transfer
1100:Security
973:Glassine
876:Blotting
851:Air-laid
809:Scholars
437:See also
333:machine.
327:hardwood
314:grammage
279:softwood
265:bacteria
257:moisture
232:softwood
209:bleached
184:degrade
1501:Commons
1453:Tissues
1244:Density
1221:Papyrus
1180:Writing
1130:Tracing
1120:Thermal
1095:Scritta
1090:Rolling
1055:Origami
1018:Butcher
953:Display
921:Contact
886:Bristol
861:Asphalt
766:Damjing
760:Cai Lun
731:History
234:by the
90:scholar
1383:Europe
1378:Canada
1125:Tissue
1035:Manila
1008:Korean
1003:Ingres
998:Inkjet
911:Coated
891:Carbon
866:Banana
649:
522:
312:. The
293:bamboo
261:grease
190:lignin
92:
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71:
63:
1522:Paper
1393:Japan
1388:India
1155:Wasli
1150:Washi
1110:Stone
1040:Mummy
1030:Lokta
1013:Kraft
993:India
978:Graph
948:CrĂŞpe
871:Bible
856:Amate
839:Types
706:Paper
623:(PDF)
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324:kappa
297:kenaf
145:paper
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83:books
1421:Uses
1410:List
1185:Xuan
1175:Wove
1105:Seed
1085:Rice
1025:Laid
988:Hemp
926:Copy
881:Bond
647:ISBN
599:2019
520:ISBN
295:and
289:pine
269:Zein
263:and
69:news
1165:Wax
1115:Tar
553:doi
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