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Creaset HWS (alkali high wet strength)

Description

Creaset HWS – one side coated gloss, high wet strength and alkali resistant label paper.

Basic usage

This paper is used for standard and wraparound labels.

Print method

Flexo printing, Offset printing

Parameter

Unit

Standard

Tolerance

Substance

g/m²

ISO 536

TAPPI T410

68

70

75

80

± 4%

Thickness

µm

ISO 534

TAPPI T411

58

60

64

68

±4%

Relative humidity

%

TAPPI T502

50

50

50

50

± 7

Whiteness D65/10˚

˚CIE

ISO 11475

96

96

96

96

± 3

Dry Opacity

%

ISO 2471

TAPPI T519

87

88

89

90

- 2

Wet Opacity (20 min)

%

78

79

81

82.5

- 2

Paper gloss

%

TAPPI T480

68

68

68

68

± 5

Smoothness Bekk (coted side)

s

ISO 8254-1

TAPPI T475

1700

1600

1500

1400

˃ 0.8 xstd

Smoothness Bekk

(back side)

s

ISO 5627

TAPPI T475

300

270

270

270

˃ 0.8 xstd

Roughness Parker (coated side)

µm

ISO 5627

TAPPI T555

1

1.1

1.1

1.1

< 1.3

Tensile strength MD

kN/m

DIN 1924-2

TAPPI T494

3.3

3.4

3.9

4.1

- 0.5

Tensile strength CD

kN/m

DIN 1924-2

TAPPI T494

2.7

2.8

3.0

3.3

- 0.5

Wet Tensile strength MD (20 min)

kN/m

ISO 3781

TAPPI T456

0.95

1

1.05

1.1

- 0.2

Wet Tensile strength CD (20 min)

kN/m

ISO 3781

TAPPI T456

0.9

0.95

1.0

1.05

- 0.2

Cobb (coated side)

g/m²

ISO 535

TAPPI T441

20

20

20

20

± 3

Cobb (uncoated side)

g/m²

ISO 535

TAPPI T441

14

14

14

14

± 3

Curl 30% RH

mm

- 10

- 10

- 10

- 10

index

Curl 50% RH

mm

0

0

0

0

1˃x<2

Curl 80% RH

mm

10

10

10

10

Index

Alcaline wash off time

sec.

DIN 16524-6

90

90

90

90

max.

Alcali Resistance

min.

DIN 16524-7

˃30

˃30

˃30

˃30

ref.

 

MD - Machine Direction
CD - Cross Direction