Welcome to Liquid International — factory-direct lab & training equipment from China

LI-QUID LIQUID INTERNATIONAL 利奎德国际 · Shanghai
Inquiry Basket0

纸张物理性能试验机

Paper Quality Analysis

Model No. PQA-0003 · Paper Analysis Equipment

Cobb Sizing Tester for Paper

纸张可勃吸水度测定仪

How much water a liner or writing paper soaks up decides print quality and box performance. The Cobb tester exposes a 100 cm² area to 100 mL of water, typically at 23 °C, for 60 s as standard or 30–180 s. After blotting under a defined roller load, the gain is weighed to 0.001 g.

Test area
100 cm²
Water volume
100 mL
Contact time
60 s standard, 30–180 s options
Water temperature
Controlled, typically 23 °C
Blotting pressure
Defined roller load
Inquiry Now

Packing & Shipping

Place of originChina (dispatched from Shanghai)
BrandLiquid International / OEM on request
Export packingFumigation-free plywood case or reinforced carton
Loading portShanghai / Ningbo (others on request)
Payment termsT/T, L/C at sight (confirmed on quotation)
Trade termsEXW, FOB, CFR, CIF, DAP

Typical export terms — final terms are confirmed on the proforma invoice.

Product Description 产品描述

How much water a liner or writing paper soaks up decides print quality and box performance. The Cobb tester exposes a 100 cm² area to 100 mL of water, typically at 23 °C, for 60 s as standard or 30–180 s. After blotting under a defined roller load, the gain is weighed to 0.001 g.

Highlights

  • Results in g/m² of water absorbed.
  • Specimens of about 125 × 125 mm.
  • Verifies coated and surface-treated papers.
  • Inspects incoming liner and carton board.

Applications

  • Sizing quality of writing and printing papers
  • Water resistance of packaging and board grades
  • Coated and surface-treated paper verification
  • Incoming inspection of liner and carton board

Specifications 技术参数

ParameterValue
Test area 测试面积 100 cm²
Water volume 水量 100 mL
Contact time 接触时间 60 s standard, 30–180 s options
Water temperature 水温 Controlled, typically 23 °C
Blotting pressure 吸墨压力 Defined roller load
Balance resolution 天平分度值 0.001 g
Specimen size 试样尺寸 About 125 × 125 mm
Result units 结果单位 g/m² water absorbed
Model No.PQA-0003
Place of originChina (dispatched from Shanghai)

Applicable standards 适用标准

ISO 1924-2 ISO 1974 ISO 535 ISO 8791-2 ISO 5626 ASTM D828 TAPPI T494 TAPPI T414 TAPPI T441 IEC 61010-1

Chinese national standards (GB/T, JJG) and international standards referenced for this product type. Test reports and certificates are supplied with the quotation on request.

Packing & Shipping 包装与运输

Export packing

Fumigation-free plywood case or reinforced carton

Every unit is power-tested before packing; enclosed in shock foam and moisture barrier; wooden cases comply with ISPM 15.

Loading port

Shanghai / Ningbo (others on request)

Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.

Inquiry Now 索取报价

Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.

Products in this inquiry: Cobb Sizing Tester for Paper (PQA-0003)

We reply within 24 hours (Beijing Time, UTC+8). Your details are used only to answer this inquiry.

Related products

5 models

Send your equipment list — receive a formal quotation within 24 hours

Single instruments, complete laboratories or government tenders — our export engineers prepare the configuration, proforma invoice and shipping documents.