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351:. 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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529:. 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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Pulp produced by the kraft process is stronger than that made by other
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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.
249:. The long fibers provide the paper its strength and
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nature of lignin interferes with the formation of the
30:"Craft paper" redirects here. Not to be confused with
629:. US Department of Agriculture. 1985. Archived from
591:"Recyclable zein-coated kraft paper and linerboard"
67:. Unsourced material may be challenged and removed.
347:Hunting cartridge paper is a kraft paper used in
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266:(PE) to ensure an effective barrier against
550:Hubbe, Martin A.; Lucia, Lucian A. (2007).
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391:Electrical insulation in large oil-filled
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234:Woodchips used for kraft paper production
127:Learn how and when to remove this message
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278:, although recyclability is hindered.
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654:Encyclopedia of Packaging Technology
180:) is a porous kraft paper with high
65:adding citations to reliable sources
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411:An inexpensive material for lining
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439:As a wrapping for the French dish
384:As a plastic-hazard-free paper in
310:can be used in the kraft process.
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257:from the wood pulp. The paper is
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241:for sack paper is made from
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598:Progress in Paper Recycling
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1318:Elemental chlorine free
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327:is normally 40–135 g/m.
211:between cellulose (and
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527:Paper and Board grades
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251:wet strength chemicals
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1217:Corrugated fiberboard
974:Electrical insulation
827:Thomas Francis Carter
459:Corrugated fiberboard
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143:A roll of kraft paper
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682:at Wikimedia Commons
624:"The Southern Pines"
502:Derived from German
61:improve this article
1538:Packaging materials
417:The base paper for
408:and other packaging
589:Parris, N (2002).
433:, for fabricating
398:Paper grocery bags
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215:) in the fibers.
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76:"Kraft paper"
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72:Find sources:
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56:
55:
50:This article
48:
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39:
38:
33:
19:
1449:Papier-mâché
1444:Paper towels
1363:Soda pulping
1280:Wet strength
1081:Photographic
1023:
954:Cotton (rag)
927:Construction
653:
652:Yam, K. L.,
638:. Retrieved
631:the original
618:
606:. Retrieved
601:
597:
584:
573:. Retrieved
559:
556:BioResources
555:
545:
526:
503:
498:
469:Manila paper
441:Gigot bitume
431:World War II
393:transformers
371:Applications
297:
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287:
284:
264:polyethylene
259:microcrepped
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117:October 2011
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59:Please help
54:verification
51:
1479:Paper money
1439:Lined paper
1358:Papermaking
1291:and process
1289:Manufacture
1265:Paper sizes
994:Greaseproof
979:GenkĹŤ yĹŤshi
832:Dard Hunter
764:Originators
732:Papermaking
680:Kraft paper
386:paper sacks
226:Manufacture
205:hydrophobic
148:Kraft paper
32:paper craft
1527:Categories
1416:Paper mill
1343:Organosolv
1222:Fiber crop
1212:China clay
1171:Waterproof
1071:Paperboard
949:Correction
942:Carbonless
790:Developers
640:2007-09-13
608:4 November
604:(3): 24–29
575:2015-02-02
490:References
479:Paper sack
435:drop tanks
182:elasticity
178:sack paper
160:paperboard
87:newspapers
18:Kraft pulp
1469:Notebooks
1454:Cardboard
1237:Wood pulp
1205:Materials
1181:Wood-free
1156:Wallpaper
1151:Tree-free
1091:Red rosin
1076:Parchment
1061:Onionskin
1056:Newsprint
917:Cartridge
912:Cardstock
907:Cardboard
857:Acid-free
474:Paper bag
419:sandpaper
406:envelopes
314:Qualities
239:Wood pulp
197:cellulose
191:; acidic
176:(or just
1502:Category
1459:Clothing
1377:Industry
1313:Deinking
1303:Calender
1260:Grammage
1146:Transfer
1111:Security
984:Glassine
887:Blotting
862:Air-laid
820:Scholars
448:See also
344:machine.
338:hardwood
325:grammage
290:softwood
276:bacteria
268:moisture
243:softwood
220:bleached
195:degrade
1512:Commons
1464:Tissues
1255:Density
1232:Papyrus
1191:Writing
1141:Tracing
1131:Thermal
1106:Scritta
1101:Rolling
1066:Origami
1029:Butcher
964:Display
932:Contact
897:Bristol
872:Asphalt
777:Damjing
771:Cai Lun
742:History
245:by the
101:scholar
1394:Europe
1389:Canada
1136:Tissue
1046:Manila
1019:Korean
1014:Ingres
1009:Inkjet
922:Coated
902:Carbon
877:Banana
660:
533:
323:. The
304:bamboo
272:grease
201:lignin
103:
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89:
82:
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1533:Paper
1404:Japan
1399:India
1166:Wasli
1161:Washi
1121:Stone
1051:Mummy
1041:Lokta
1024:Kraft
1004:India
989:Graph
959:CrĂŞpe
882:Bible
867:Amate
850:Types
717:Paper
634:(PDF)
627:(PDF)
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508:kraft
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356:flexo
335:kappa
308:kenaf
156:paper
152:kraft
108:JSTOR
94:books
1432:Uses
1421:List
1196:Xuan
1186:Wove
1116:Seed
1096:Rice
1036:Laid
999:Hemp
937:Copy
892:Bond
658:ISBN
610:2019
531:ISBN
306:and
300:pine
280:Zein
274:and
80:news
1176:Wax
1126:Tar
564:doi
429:In
358:or
158:or
154:is
150:or
63:by
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969:DĂł
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515:^
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400:,
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