GB/T 28995-2012 English PDF (GBT28995-2012)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 28995-2012
Historical versions: GB/T 28995-2012
Preview True-PDF (Reload/Scroll if blank)

GB/T 28995-2012: Special paper for wood-based panels decoration
GB/T 28995-2012
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 79.080
B 70
Special paper for wood-based panels decoration
ISSUED ON: DECEMBER 31, 2012
IMPLEMENTED ON: JUNE 01, 2013
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Classification ... 11 
5 Requirements ... 12 
6 Inspection methods ... 19 
7 Inspection rules ... 22 
8 Marks, packaging, transportation and storage ... 25 
Special paper for wood-based panels decoration
1 Scope
This Standard specifies terms and definitions, classification, requirements,
inspection methods, inspection rules as well as marks, packaging,
transportation, storage of special paper for wood-based panels decoration.
This Standard is applicable to special paper for wood-based panels decoration,
including base paper, printed paper, impregnated decorative paper, wear
impregnated decorative paper, overlay paper, impregnated overlay paper, wear
overlay paper, wear impregnated overlay paper, balance paper and
impregnated balance paper.
This Standard is not applicable to kraft paper, pre-painted paper and tissue
paper.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 450-2008, Paper and board - Sampling for testing and identification of
machine and cross direction wire side and felt side
GB/T 451.1-2002, Paper and board - Determination of size and deviation
GB/T 451.2-2002, Paper and board - Determination of grammage
GB/T 456-2002, Paper and board - Determination of smoothness
GB/T 458-2008, Paper and board - Determination of air permeance
GB/T 459-2002, Paper and board - Determination of dimensional instability
GB/T 461.1-2002, Paper and board - Determination of capillary rise (Klemm
method)
GB/T 462-2008, Paper, board and pulp - Determination of moisture content
of analytical sample
printed base paper, with color, figure, pattern
3.4 impregnated decorative paper
impregnated paper that solid color paper or print base paper is impregnated
with amino resin and dried to a certain extent, with certain resin content and
volatile content; after heating and pressing, it can be glued to each other or
glued to the artificial board substrate
3.5 wear impregnated decorative paper
impregnated decorative paper that contains certain wear-resistant materials,
with certain wear resistance
3.6 overlay paper
paper that is covered at the outermost layer of the substrate surface to protect
the decorative layer, with a certain absorption and good transparency
3.7 wear overlay paper
overlay paper that contains a certain amount of wear-resistant material
3.8 impregnated overlay paper
impregnated paper that the overlay paper is impregnated with amino resin and
dried to a certain extent, with a certain resin content and volatile content; after
heating and pressing, it can be glued with impregnated decorative paper
3.9 wear impregnated overlay paper
impregnated overlay paper that contains a certain amount of wear-resistant
material
3.10 balance paper
paper with a certain absorption and covering property that plays a role of
strengthening and balancing in the slab
3.11 impregnated balance paper
impregnated paper that the balance paper is impregnated with amino resin and
dried to a certain extent, with a certain resin content and volatile content; after
heating and pressing, it can be glued to each other or to the substrate
3.12 crease
folding of decorative base paper due to various reasons; the crease cannot be
eliminated on the surface of the final product after dipping and pressing, which
falling off, resulting in small dots of the base paper color on the surface of the
decorative paper
3.22 stain
dirty spots and spots with non-design pattern texture on the surface of
decorative paper
3.23 width variation
after printing, the difference between the actual printing width of the entire
pattern and the effective printing width of the design
3.24 misregister
during the printing process, the maximum overprint deviation between each
color, including longitudinal registration error and horizontal registration error
3.25 wrinkle
unevenness on the surface of the decorative paper due to various reasons
3.26 missing print
a phenomenon that during printing process, the ink in the mesh of the plate
roller is not transferred to the decorative base paper, which causes the lack of
decorative paper pattern texture
3.27 blade streaks
the ink on the layout is not scraped clean, causing the excess ink to be
transferred to the decorative paper and the vertical impressions formed are
called blade streaks
3.28 doctor blade mark
intermittent horizontal streaks during printing process due to the bounce or
unstable oscillation of the squeegee; it is also called jump blade mark
3.29 torn off edges
defects on the edges of decorative paper rolls
3.30 base weight
the mass of paper per unit area, in grams per square meter (g/m2)
NOTE: Rewrite the definition of Clause 3 in GB/T 451.2-2002.
3.40 light fastness
the ability of paper to retain its original color after exposure to sunlight or
artificial light
3.41 penetration time
when the paper is immersed in the specified test solution, the time required for
it to be completely saturated, expressed in seconds (s)
4 Classification
4.1 According to the role of special paper in the slab, it is classified into:
- overlay paper;
- decorative paper;
- balance paper.
4.2 According to decorative paper processing process, it is classified into:
- base paper;
- printed paper;
- impregnated decorative paper.
4.3 According to whether there is printing on the surface of the decorative paper,
it is classified into:
- solid color paper;
- print base paper.
4.4 According to different technique of decorative paper decoration, it is
classified into:
- paper for high pressure method;
- paper for low pressure method.
4.5 According to the light fastness of decorative paper, it is classified into:
- standard level;
- high color retention level.
6.1.5 Appearance quality inspection of impregnated paper
According to Table 3 and Table 4, inspect piece by piece.
6.2 Determination of specifications and allowable deviation
In accordance with GB/T 451.1-2002.
6.3 Inspection of physical and chemical properties
6.3.1 Specimen extraction
In accordance with GB/T 450-2008.
6.3.2 Specimen processing and test conditions
In accordance with GB/T 10739-2002.
6.3.3 Determination of quantification
In accordance with GB/T 451.2-2002.
6.3.4 Determination of moisture content
In accordance with GB/T 462-2008.
6.3.5 Determination of ash content
In accordance with GB/T 742-2008.
6.3.6 Determination of pH value
In accordance with GB/T 1545-2008.
6.3.7 Determination of dry tensile strength lengthwise
In accordance with GB/T 12914-2008. Only determine dry tensile strength
lengthwise, in N/15mm.
6.3.8 Determination of wet tensile strength lengthwise
In accor...