Corrugated fibreboard for export products

This standard applies to the corrugated paperboard used in the manufacture of corrugated paperboard boxes for export product transportation packaging (hereinafter referred to as corrugated paperboard). GB 5034-1985 Corrugated paperboard for export product packaging GB5034-1985 Standard download decompression password: www.bzxz.net
This standard applies to the corrugated paperboard used in the manufacture of corrugated paperboard boxes for export product transportation packaging (hereinafter referred to as corrugated paperboard).

National Standard of the People's Republic of China
Corrugated ffbre board
for export products
UDC 676.76
3 621.798
GB5034-85www.bzxz.net
This standard applies to corrugated board (hereinafter referred to as corrugated board) used in the manufacture of corrugated boxes for transport packaging of export products. Terminology
1.1 Corrugated board
A board-shaped material made by bonding boxboard and corrugated paper processed into a corrugated shape by dead corrugation. 1.2 Single corrugated board
Corrugated board made by bonding two layers of boxboard and a layer of corrugated paper, see Figure 1. 1.8 Double-wall corrugated board Corrugated board made of two layers of boxboard, two layers of corrugated paper and a layer of sandwich, see Figure 2. 2 Technical requirements 2.1 Types According to the physical strength of corrugated board, single corrugated board and double-wall corrugated board are divided into 4 types, see Table 1. Issued by the State Bureau of Standards in 198504-06
Implementation on 1985-11-01
Single-wall cardboard
Double-wall corrugated cardboard
Total weight of paper
Below 400
401 ~500
501~640
Above B41
Below 400
401 - 500
501 ~640
Above 641
GB 5034—85
Burst resistance
kgf /em?
Peel strength
kg—cm
Note: ① Moisture content refers to the moisture content of the corrugated cardboard 30 to 60 minutes after it leaves the machine. ② Table 1 does not include B-type single corrugated paperboard and B/B-type double corrugated paperboard. ③ All indicators are tested according to the methods specified in Appendix A of this standard. 2.2 Materials
The boxboard used in processing corrugated paperboard shall have a maximum density of g/m22
tightness, g/cm3
not less than
bursting strength, kgf/cm2
not less than
folding endurance (transverse)
not less than
ring crushing strength (transverse), kg
not less than
must meet the technical requirements of Table 2.
edge crushing strength
kgr/cm
adhesion strength
kgf/-10cm
surface absorption weight (front/back),/m?
not more than
water content, %
GB 5084-85
Continued Table 2
Must meet the technical requirements of Table 3.
Corrugated base paper used for processing corrugated board, 2.2.2
Basis weight, g/m2
Thickness, mm
Burst resistance, kg f / em 2
Not less than
Ring crush strength (transverse), kk
Not less than
Moisture content,
Gluing degree, mm
125g/m
125 ±4
0.5 ~ 0.75
150g/mz
150 ±4.5
180g/m2
0.27 *0.0
2.2.8 Starch adhesive or other adhesive with equivalent adhesive effect shall be used for processing corrugated board. Sodium silicate shall not be used. 2.8 Type
The three types of corrugated flutes listed in Table 4 shall be used.
Height of corrugated board, mm
Number of flutes, pcs/300 mm
34 ±2
40 ± 2
50 ± 2
2.4 Quality
GB5034--85
2.4.1 The bonding of corrugated cardboard is solid, the corrugation is regular, and there is no dirt, cracks, creases or other defects that hinder its use. The physical strength and moisture content must meet the requirements of Table 1.
2.4.2 There shall be no warping greater than 20mm in each 1m single corrugated cardboard. 2.4.3 The thickness of single corrugated cardboard shall not be less than the limit value of the corresponding corrugation height specified in Table 4. The thickness of double corrugated cardboard shall not be less than the limit value of the corresponding corrugation height specified in Table 4. , cannot be lower than the sum of the upper limits of the heights of the two corresponding corrugations. 2.4.4 The specifications and dimensions of the corrugated board shall comply with the provisions of the order contract. The unbonded and irregular parts at both ends of the board shall not exceed 8mm.
3 Acceptance rules
3.1 Corrugated board shall be delivered in batches. The manufacturer shall ensure that the corrugated board shipped meets the requirements of this standard and issue a certificate of conformity. 3.2 The buyer shall conduct acceptance in accordance with this standard. When it is found that the top index does not meet the requirements of this standard, the unqualified index may be retested. 39. If any of the seven main technical indicators of the bursting strength, puncture strength, edge pressure strength, bonding strength, specifications, moisture and thickness of the corrugated board is unqualified, the batch of products shall be unqualified. 4 Packaging, transportation and storage
4.1 The manufacturer shall package the corrugated board according to the requirements of the user. 4.2 It should be ensured that the corrugated board is not directly affected by rain, wind, exposure and pollution during transportation. Do not drop from heights during loading and unloading, and do not use tools that may affect product quality. 4.3 Storage warehouses should be kept ventilated and dry, and short-term exposure to the sun must have good protective measures such as bitterness and padding. GB5034-85
Appendix A
Test method
(Supplement)
A.1 Sampling and sample pretreatment: Sampling and pretreatment shall be carried out in accordance with (GB450-79 "Method for taking average samples of paper and paperboard and treatment of samples before inspection".
A.2 Determination of moisture content: Determine the moisture content in accordance with GB462-79 "Determination of moisture content in paper and paperboard". However, the sampling quantity shall not be less than 50g, the sample size shall be 150×100mm, and the weighing accuracy shall be 0.1g. A.3 Determination of burst resistance: Determine the burst resistance of corrugated paperboard in accordance with GB1539-79 "Determination of burst resistance of paperboard". However, the sample clamping should be controlled Pressure: 4kg for single corrugated board, 8kg for double corrugated board. A.4 Determination of puncture strength: Determine the puncture strength of corrugated board according to GB2679,7-81 "Determination of puncture strength of corrugated board". A.5 Determination of thickness: Determine according to the thickness determination method of corrugated board. A.6 Determination of edge pressure strength: Determine according to the edge pressure strength determination method of corrugated board. A. Determination of adhesive strength: Determine according to the adhesive strength determination method of corrugated board. Additional remarks:
This standard was proposed by the Ministry of Foreign Economic Relations and Trade of the People's Republic of China. This standard was drafted by the China Export Commodity Packaging Research Institute and Tianjin Branch of the Ministry of Foreign Economic Relations and Trade. The main drafters of this standard are Sha Renyu. Guo Lianbi and Gong Yingxuan.
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