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LÀM THẾ NÀO ĐỂ SẢN XUẤT SẢN PHẨM GIẤY NHÁM CỦA CHÚNG TÔI?

 LÀM THẾ NÀO ĐỂ SẢN XUẤT SẢN PHẨM GIẤY NHÁM CỦA CHÚNG TÔI?

As we know, abrasive cloth and paper are also called COATED SANDING TOOL, which mainly consists of back paper or cloth, coated with the grain For grinding that is glued by resin-resin. Show as below :

 

A. construction of abrasive paper


Abrasive paper is made by base material, grinding grain, and adhesive resin.
NIKKEN material feature :
 

Base type

Base paper weight(g/m2 )

Water-proof material weight(g/m2 

Base thickness(μ)

Aw

less 85

less110

approx 95

Cw

95 140

110 150

approx 140

Dw

140 200

150 up

approx 190

Ew

200 up

--

approx 270

 

Base type

Weight for base(g/m2 )

Thickness for base (μ)

Jw

Cotton

190200

340350

Weave fabric

190200

330340

Xw

Cotton

270280

460470

Weave fabric

270280

440540


NIKKEN water-proof base material use the Japanese emulsion paper which with the best Flexibility is the best choice for waterproof flexible abrasive paper. 
Kraft paper is used for jumbo roll, water-proof sanding paper and belts.

Others base feature and purposes:

Base material

Anti-longitude tension
(Kg
25mm)

Feature and purpose

Aw

approx.15

1.Weak tension better flexibility best for curve sanding .
2.Handy sanding, vibrating sanding pad.
3.This is the feature of Japanese abrasive paper.

Cw

approx.30

1.Medium tension is the standard type for waterproof
2.Suitable for Taiwanese three-legged polish machine.
3.Emulsion Sanding Paper suits handy grinding and polishing.

Dw

approx.65

1.Strong tension is heavy duty
2.Suitable for coarse grain as stroke sander
3.As well as vibration polish tool by hand

Ew

approx.80

1.The stronger tension, the heavier duty
2.For wide belt as edge sander or wide belt sander and spindle sander

 

Jw Base material

Anti-longitude tension
(Kg/25mm)

Feature and purpose

Common weave cotton fabric

approx.25

1.Lower tension, better flexibility for paper sheet
2.Stroke belt, and sanding in skill

Chu-Tzi weave cotton fabric

approx.40

1.Medium tension for curve sanding
2.Stroke belt sander for curve edge
3.Chu-Txi weave cotton fabric is the standard type for curve sanding

Argyle weave cotton fabric

approx.60

1.Heavy duty with strong tension
2.Mainly for profile belt sander
3.Suit for spindle sander

 

B. Grain type :

Grinding grain consisted of natural ( Garnet, Flint ) and synthetic (silicone carbon, Aluminum oxide ) 

1.Natural grain :

·        Garnet:
Shining as glass and with hardness, brittleness.

·       emery:
Consists of aluminum oxide and ferric oxide, specially for abrasive paper, and cloth, cloth sanding pad, polishing before anodized.

Detail as below:

Type

Chemistry

Mo-Hardness

flint

SiO

6~6.5

garnet

Al2O23FeO3SiO2

7~8

Emery

Al2O2Fe2O4

7.5~9

·      
Synthetic grain :

Type

Chemistry

Mo-Hardness

Aluminum oxide

Al2O2

9.4

Silicone carbon

SiC

9.5~9.7

Diamond

10

·      
Sanding feature for each type of grain : 

Type

mark

color

feature

Silicone carbon

CC

black

1.Hard and brittle, sharp shape.
2.Grind effectually, surface relatively rough after work.
3.Suit for heavy lacquer. Might be blocked on Flexible material.
4.Cause plumy easily on woody object.

Aluminum oxide

AA

brown

1.Medium hard, with tension.
2.Grain relatively dull, light cutting.
3.Easily slide on hard surface.
4.Facial w/better effectiveness and process quality Un-blockage.

WA

White

1.Effectiveness better than AA, without plumy, suit for wood.
2.Non-burr, suit for wood working
3.Easily slide on shard surface, but facial
4.Better and un-blockage.

Garnet

light brown

1.low hardness and dull shape.
2.Low grinding effectiveness, better facial.
3.And non-burr, suit for wood.

 

C.GLUE ( Adhesive )


Glue divided into two types, natural glue with low anti-humidity, easily influenced by weather. Recently polyester resin takes its place. NIKKEN use double glue to firm the back and grain.
For heavy polish work, soft glue for light sanding work, hard glue for heavy sanding work.

 

 

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