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Extensible Paper

Extensible paper, also known as extensible sack kraft paper, is a specialized type of kraft paper produced from 100% wood pulp. It has high strength,excellent tear resistance,high burst strength, waterproof,moisture-proof and good air permeability.

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Specialty Paper

key word:

Extensible paper, bags paper

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Product Introduction

Specification

Properties	Grade /Unit		Test method	Extensible paper
Properties	Grade /Unit		Test method	60	65	70	75	80	85	90	95	100	110	120
Grammage	g/m2	/	ISO 536	60±2	65±2	70±2	75±2	80±2.5	85±2.5	90±2.5	95±2.5	100±3	110±3	120±3.5
Tensile strength	kN/m	MD	ISO 1924-3	49	53	57	61	65	69	73	77	81	89	97
Tensile strength	kN/m	CD		37	40	43	46	49	52	55	58	61	67	73
Tensile index	Nm/g	MD		81	81	81	81	81	81	81	81	81	81	81
Tensile index	Nm/g	CD		61	61	61	61	61	61	61	61	61	61	61
Stretch at break	%	MD		60	60	60	60	60	60	60	60	60	60	60
Stretch at break	%	CD		75	75	75	75	75	75	75	74	73	68	66
Tensile energy absorption (TEA)	J/m2	MD		180	195	210	225	240	255	270	275	290	320	350
Tensile energy absorption (TEA)	J/m2	CD		190	205	220	235	250	265	280	285	300	300	325
Tensile energy TEA index	J/g	MD		30	30	30	30	30	30	30	29	29	29	29
Tensile energy TEA index	J/g	CD		32	32	32	32	32	31	31	30	30	27	27
Теаr index	mNm2/g	MD	ISO 1974	13	13	13	13	13	13	13	13	14	14	14
Теаr index	mNm2/g	CD	ISO 1974	13	13	14	14	14	14	14	14	14	14	14
Water absorption (Cobb 60)	g/m2	WS	ISO 535	32	32	32	32	32	32	32	32	32	32	32
Air resistance	s	Gurley method	ISO 5636-5	18	18	18	18	18	18	18	18	18	18	18
Moisture	%		ISO287	75

Basic weight: 70gsm to 140gsm.
Product Usage:It is mainly used to make all kinds of heavy-duty packaging paper bags,such as square bags,valve bags,cement bags,fertilizer bags,three-in-one paper bags,flour bags and rice bags,etc. It is also suitable for some special fields with high requirement for paper strength and toughness, such as food packaging, pharmaceutical packaging, etc. ‌
Features: Extensible paper, also known as extensible sack kraft paper, is a specialized type of kraft paper produced from 100% wood pulp. It has high strength,excellent tear resistance,high burst strength, waterproof,moisture-proof and good air permeability.

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