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Laboratory Padder
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Laboratory Padder
Mini Lab Dyeing Padder
A Laboratory Padder is a compact, laboratory-scale machine used to apply liquids like dyes, chemicals, and finishes to fabric samples. It simulates the padding process in textile manufacturing, where fabric is passed through a liquid solution, then squeezed between rollers to ensure uniform application and absorption.
Key Features of a Laboratory Padder:
- Adjustable Rollers – The fabric is passed through two or more rollers to apply even pressure and squeeze out excess solution, ensuring uniform chemical or dye application.
- Variable Pressure Control – Allows adjustment of roller pressure for different fabric types and chemical formulations, ensuring optimal penetration without damage.
- Solution Bath – Holds the liquid (e.g., dye, finish, or other chemical treatments) in a bath through which the fabric is dipped before passing through the rollers.
- Fabric Speed Control – Adjustable conveyor speed allows for control over the time the fabric spends in contact with the liquid solution, affecting the degree of treatment.
- Digital Control Panel – Provides easy adjustment of pressure, speed, and solution volume to ensure precise and reproducible results.
- Compact Design – Smaller, lab-scale version of industrial padders, ideal for research, development, and small-scale testing.
- Safety Features – Safety guards, emergency stops, and proper handling mechanisms to prevent accidents during operation.
Applications:
– Dyeing: For even application of dye or pigment on fabric.
– Finishing: Applying finishes like softeners, water repellents, or flame retardants.
– Chemical Treatments: Applying various chemicals used in textile manufacturing, such as anti-microbial treatments or stain-resistant solutions.
– Shrinkage Testing: Simulating treatments to test fabric behavior under different conditions.
Benefits of Laboratory Padder:
- Precise Application of Chemicals – Provides uniform and controlled application of dyes, finishes, and other chemicals, ensuring consistent results.
- Small-Scale Testing – Ideal for small sample testing, allowing for fabric treatment without needing full-scale production equipment.
- Versatile Use – Suitable for dyeing, finishing, and applying various chemical treatments, making it a flexible tool for R&D labs.
- Cost-Effective – Reduces the need for large-scale machinery and the associated costs, while providing reliable results for small batches.
- Controlled Fabric Treatment – Offers adjustable pressure, speed, and solution concentration, enabling fine-tuned processing for different fabric types and applications.
- Accelerates Development – Speeds up the testing and development of new products or finishes, improving time-to-market for textile manufacturers.
- Energy Efficient – Consumes less energy compared to larger, industrial-scale machines, making it suitable for lab use.
- Compact and Space-Saving – Designed for laboratory environments with limited space, without compromising on functionality.
- Reproducible Results – Ensures consistent application of treatments across multiple samples, aiding in accurate testing and comparison.
Features of Laboratory Padder:
- Adjustable Roller Pressure – Allows precise control over the pressure applied to the fabric, ensuring uniform chemical or dye application.
- Variable Speed Control – Adjustable conveyor speed for controlling the time the fabric spends in the solution bath, influencing the absorption rate.
- Solution Bath – Holds dye, chemicals, or finishes, and the fabric passes through this bath before moving to the rollers.
- Digital Control Panel – Easy-to-use interface for setting and adjusting parameters like speed, pressure, and solution concentration.
- Compact and Lab-Friendly Design – Designed for smaller, space-efficient use in textile labs, allowing for small sample testing.
- Roller Gap Adjustment – Allows for fine-tuning of the gap between rollers to regulate the amount of solution squeezed out of the fabric.
- Stainless Steel Construction – Durable and resistant to corrosion from the chemicals used in textile treatments.
- Safety Mechanisms – Includes safety guards, emergency stops, and user protection features during operation.
- Even and Controlled Application – Ensures even distribution of treatments (dye, finish, etc.) on fabric with minimal waste.
- Versatility in Application – Can be used for a wide range of textiles and treatments, including dyeing, softening, flame-retardant treatments, etc.
How to Use a Laboratory Padder:
- Prepare the Fabric Sample – Cut the fabric sample to the required size for the experiment. Ensure it’s clean and free of any debris.
- Prepare the Solution – Mix the dye, chemical, or finish solution according to the desired concentration and the fabric’s needs. Ensure that the solution is homogeneous.
- Set the Parameters – Pressure: Adjust the roller pressure based on the fabric type. Different fabrics require different pressure levels to ensure uniform application. – Speed: Set the fabric conveyor speed depending on the desired treatment time (longer exposure for deeper treatment).
– Roller Gap: Adjust the roller gap to control the amount of liquid squeezed out from the fabric.
- Load the Fabric into the Machine – Place the fabric carefully into the machine. The fabric should go through the solution bath and then pass between the rollers.
- Start the Machine – Turn on the machine and allow the fabric to pass through the rollers. The solution will be evenly applied to the fabric as it moves through the bath and is squeezed by the rollers.
- Monitor the Process – Keep an eye on the fabric to ensure it is being treated uniformly and there are no blockages or fabric jams.
- Unload the Fabric – Once the fabric has been treated, carefully remove it from the machine. Inspect for even application of the solution and any excess liquid.
- Dry or Process Further – Depending on the treatment, proceed with further steps such as drying, heat setting, or curing, as required by the experiment or process.
Safety Tips:- Always wear appropriate personal protective equipment (PPE), such as gloves and goggles, when handling dyes or chemicals. – Ensure the machine is turned off and the rollers are stopped before attempting to remove or adjust the fabric.
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Laboratory Padder
Mini Lab Dyeing Padder
Brand: DUNLIN
Model:PM-A1
Origin: China
Roller position: Vertical
Rollers width :450mm
Rollers diameter:125mm
Rubbers hardness: 70degree shore
Cloth speed: 0-10m/min
Standard pressure: 0.6Mpa
Retained dyestuff ratio: 40-80%
Power supply: 1∮AC 220V 50/60HZ
Dimensions (L x W x H):710 x 600x 1340mm
Standard Accessories
English manual
Certificate of quality.
Laboratory Padder Machine Dunlin price in Bangladesh
Laboratory Padder Machine Dunlin in textile
Textile testing equipment in Bangladesh
Textile testing equipment in Dhaka
Textile testing equipment in Uttara
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Color fastness to washing machine
COLOR FASTNESS TO WASHING MACHINE
COLOR FASTNESS TO WASH MACHINE
- Drying: - After washing, the sample is dried, typically air-dried or tumble-dried.4. Evaluation: - Color change and staining on adjacent fabrics are assessed using a gray scale (1 to 5 scale; 5 = no change, 1 = severe change). - Results may also be evaluated visually under standard lighting.
- Supports Brand Reputation - Reliable color fastness contributes to a premium product image and consistent performance.4. Compliance with Standards - Meets industry requirements (e.g., ISO, AATCC), crucial for export, certifications, and regulatory compliance.
- Improves Process Control- Helps identify dyeing or finishing process issues early, leading to better production control.6. Reduces Rework and Waste - Minimizes production losses due to color defects after washing.
- Essential for Specific End Uses - Critical for items subject to frequent washing (e.g., uniforms, baby clothes, hospital linens).8. Supports Material Selection - Guides textile manufacturers in choosing appropriate dyes and fabrics for specific applications.
- Assessment of Color Change and Staining- Evaluates both the fabric’s color retention and the staining of adjacent fabrics using grey scales (1 to 5 rating).4. Multi-Fiber Fabric Use - Tests include fabric stitched with adjacent test strips (cotton, wool, etc.) to assess color bleeding onto different fibers.
- Multiple Test Options - Includes domestic, accelerated, and industrial washing conditions depending on the end-use of the fabric.6. Temperature and Time Control - Precise control over wash temperature (e.g., 40°C, 60°C) and duration (e.g., 30 mins), simulating specific washing cycles.
- Detergent and Additive Use - Uses standardized detergent formulations with/without optical brighteners, and sometimes alkaline or oxidizing agents.8. Reproducible and Quantifiable - Provides repeatable results that can be objectively measured and documented.
- Applicability to All Textile Types - Suitable for dyed, printed, or coated fabrics across various fibers (cotton, polyester, blends, etc.).
- Rate of temperature rise: Maximum speed for 2ºC/min 7. Internal materials: Imported Stainless Steel 316L 8. Control panel: Touch screen
- Rack point control function helps to replace containers easily 10. Safety device: Safety door switch, over-temperature protector and dry heating protector 11. Heating media: Distilled water 12. Power supply: AC220V 50Hz 30A
Rainin Digital Pipette
Rainin Digital Pipette
Digital Pipette
- Digital Volume Setting
- High Accuracy and Precision
- Ergonomic Design
- Easy Calibration and Maintenance
- Durable and Chemically Resistant - Built with high-quality materials that resist damage from chemicals and frequent use.
- Models and Volume Ranges - Available in single-channel and multi-channel versions.
- LTS (LiteTouch System) - Many Rainin pipettes use the LTS tip system which reduces tip ejection force and ensures a consistent seal.
- Compliance and Traceability - Some digital models offer data storage or integration with lab information systems for traceability.
- High Accuracy and Precision - Ensures reliable and reproducible results, essential for sensitive experiments.
- Digital Volume Control - Reduces human error with easy and precise volume setting via digital interface.
- Ergonomic Design- Minimizes hand strain and fatigue during prolonged use; ideal for repetitive pipetting tasks.
- LiteTouch System (LTS) - Eases tip attachment and ejection, reducing risk of RSI (Repetitive Strain Injury) and improving comfort.
- Versatile Volume Range - Available in multiple models to handle volumes from microliters to milliliters.
- Durable and Reliable - Built with high-quality materials for long life and resistance to chemicals and frequent use.
- Easy Maintenance and Calibration - Simplified calibration and cleaning ensure long-term performance and compliance.
- Data Integrity and Traceability -Some models store data, supporting audit trails and regulatory compliance.
- Enhanced Productivity - Quick setup, easy operation, and consistent performance speed up lab workflows.
- Digital Volume Adjustment - Precise and easy-to-read digital display for accurate volume setting.
- High Precision and Accuracy- Delivers consistent results, meeting ISO and GLP/GMP standards.
- Ergonomic Design- Lightweight, balanced with low plunger and tip ejection force to reduce fatigue.
- LiteTouch Tip Ejection System (LTS) - Reduces tip attachment/ejection force, improving comfort and consistency.
- Durable Construction - Built with high-quality, chemically resistant materials for long-term use.
- Wide Volume Range - Available in multiple models from 0.1 µL to 10 mL.
- Single-Channel and Multi-Channel Options - Suitable for various applications including high-throughput assays.
- Autoclavable Components- Some parts can be autoclaved for sterilization and contamination control.
- Easy Calibration and Maintenance - User-friendly calibration settings with accessible parts for cleaning.
- Optional Electronic Models - Some versions include programmable features, multiple modes (e.g., reverse pipetting), and memory storage.
Stretch Recovery Tester Static Method
Stretch Recovery Tester Static Method
Stretch Recovery Tester
- A sample is stretched to a predetermined extension or force.
- The stretch is maintained for a set period.
- After removing the load, the recovery (return to original length) is measured after a fixed time.
- The fabric sample is clamped and stretched to a specific length or force.
- It’s held for a fixed duration (e.g., 1–5 minutes).
- The tension is released, and the sample is allowed to recover.
- The recovered length is measured after a set time.
Stretch Recovery Tester
Laboratory tenter
Laboratory Tenter
laboratory mini tenter
- Heat-Setting and Drying - Simulates the process of setting fabric dimensions and applying finishes using controlled temperature and tension.
- Fabric Width Control - Uses clips or pins on chains or rails to hold fabric edges and stretch them to desired width, just like in full-size tenters.
- Adjustable Temperature and Speed - Digital controls allow precise setting of drying/curing temperature and conveyor speed to match production conditions.
- Compact Design - Bench-top or floor-standing units suitable for labs with limited space.
- Transparent Viewing Chamber - Allows visual inspection of fabric behavior during processing.
- Versatile Application Range - Can process woven, knitted, and nonwoven fabrics of various compositions (cotton, polyester, blends, etc.).
- Accurate Simulation of Production - Replicates industrial finishing processes for reliable lab-scale testing and development.
- Improves Fabric Quality- Allows precise control of heat and tension, optimizing fabric properties like shrinkage, dimensional stability, and hand feel.
- Cost-Effective - Enables process trials and fabric development without using full-scale production equipment.
- Speeds Up R&D - Facilitates quick testing and adjustment of settings for new fabric styles or finishes.
- Versatile Applications - Suitable for drying, heat-setting, finishing, and evaluating different types of fabrics and treatments.
- Space-Efficient - Compact design fits easily into textile labs or sample rooms.
- Energy Efficient- Uses less power than industrial machines, ideal for small-scale and repeated testing.
- Process Control and Reproducibility- Digital controls ensure consistent and repeatable results, aiding in quality assurance and product development.
- Enhances Safety - Built with lab use in mind, featuring insulation and safety systems to protect users.
- Precise Temperature Control - Digital temperature setting (typically up to 220–250°C) for accurate heat-setting and drying.
- Adjustable Fabric Width - Equipped with clip or pin chains to hold and stretch fabric across the width, simulating real stentering.
- Variable Conveyor or Chain Speed- Adjustable speed to control fabric dwell time during processing.
- Compact and Lab-Friendly Design - Designed for bench-top or small floor space use in textile labs.
- Transparent Chamber Window - Allows monitoring of fabric behavior during treatment.
- Digital Display and Control Panel - Easy operation for setting temperature, speed, and time.
- Uniform Heat Distribution- Ensures even treatment across the fabric width for accurate testing.
- Stainless Steel Construction - Durable, corrosion-resistant body for long-term use at high temperatures.
- Safety Features - Includes over-temperature protection, insulated body, and emergency stop functions.
- Sample Versatility - Suitable for various fabric types (woven, knit, synthetic, blends) and lab finishing tasks.
laboratory mini tenter
Fabric air permeability tester
Fabric Air Permeability Tester
Fabric air permeability tester
- Accurate Breathability Measurement - Precisely measures how breathable a fabric is, essential for comfort and performance.
- Supports Quality Control - Ensures consistent air permeability in fabric batches, critical for products like PPE, sportswear, and filters.
- Enhances Product Design - Helps in selecting or engineering fabrics with the right airflow properties for specific uses.
- Standard Compliance - Conforms to international testing standards (e.g., ASTM D737, ISO 9237), ensuring global credibility.
- Quick and Reliable Testing - Provides rapid results, increasing lab efficiency and production decision-making speed.
- Wide Material Compatibility - Suitable for woven, nonwoven, knitted fabrics, and even paper or coated materials.
- Improves Functional Performance - Helps optimize products for ventilation, moisture control, and thermal comfort.
- Reduces Product Failure - Identifies underperforming fabrics early, minimizing risks in high-performance applications.
- Digital Display - Shows air permeability readings clearly in units like L/m²/s or cm³/cm²/s.
- Precise Test Head/Clamp - Provides an airtight seal to prevent air leakage and ensure accurate results.
- Adjustable Pressure Settings - Allows testing under various pressure drops (e.g., 10–2500 Pa), depending on fabric type.
- Automatic Airflow Measurement - Built-in sensors or flow meters capture airflow rate automatically for quick analysis.
- Multiple Test Area Sizes - Interchangeable test plates to match different sample sizes and standard requirements.
- Data Logging and Export - Some models include USB or software connectivity for storing and exporting test results.
- Standard Compliance - Conforms to ASTM D737, ISO 9237, BS 5636, DIN 53887, etc.
- Robust Construction - Built with corrosion-resistant materials and durable components for long-term lab use.
- Low Maintenance - Simple cleaning and calibration process for reliable performance.
- Compact and User-Friendly Design - Ideal for lab benches and easy operation with minimal training.
- Prepare the Sample - Cut the fabric sample to the required size (usually circular, e.g., 20 cm²).
- Mount the Sample - Place the fabric securely in the test clamp or holder, ensuring no wrinkles or gaps.
- Set Test Parameters - Adjust the air pressure drop according to the fabric type or standard (e.g., 100 Pa).
- Start the Test - Turn on the air supply and start the airflow through the fabric.
- Read the Measurement - The digital display will show the air permeability value in the selected units.
- Record the Results - Note the readings or export data if the device supports it.
- Repeat if needed - Test multiple samples or areas for accuracy and average the results.
- Clean and Maintain - After testing, clean the clamp and ensure the device is calibrated regularly.
r Permeability Tester
Appliance Range
It is used to TEST the air permeability of various textile fabrics, including industrial fabrics, nonwoven fabrics and other textile products and other breathable materials.
Related Standards
GB / T 5453, GB / T 13764, ISO 9237, ISO 5636, ASTM D737, etc.
Instrument characteristics
1. Automatic sample clamping, automatic nozzle replacement, and quick test.
2. Microcomputer processing, the test results are displayed directly, without manual table calculation;
3. Built-in continuous test mode, the test unit can be switched as needed.
4. Chinese LCD menu operation, configure computer interface.
Technical parameter
1. Range of sample pressure difference: 1 ～ 4000Pa
2. Measurable air permeability: 1 ～ 40,000mm / s
3. Measurement error: ≤ ± 2%
4. Measurable fabric thickness: ≤8mm
5. Test area: 5cm2; 20cm2; 50cm2; 100cm2
Ф50mm (≈19.6cm2)
Ф70mm (≈38.5cm2)
6. Nozzles: 11 in total (automatic replacement of digital setting)
CODE 00 01 02 03 04 05 06 07 08 09 10
DIAφ（mm）
0.8 1.2 2 3 4 6 8 10 12 16 20
7.Data Capacity:≤200 times tests
8.Power Supply：AC220V 50Hz 2KW
9.Weight：80Kg
10.Shape：1250×700×1250mm 
Oscillation type water bath Dyeing Machine
Oscillation Type Water Bath Dyeing Machine
water bath/Shaker bath Dyeing machine
- Oscillating Mechanism - Provides back-and-forth movement of beakers for uniform dye penetration and sample agitation.
- Multiple Beaker Capacity - Supports dyeing of 12–24 samples simultaneously, ideal for comparative lab testing.
- Digital Temperature Control - Maintains precise water bath temperature (typically up to 99°C), essential for consistent dyeing.
- Variable Oscillation Speed - Adjustable speed settings (e.g., 50–200 cycles/min) to suit different materials and processes.
- Programmable Settings - Allows setting of temperature, time, and speed for repeatable and automated dyeing cycles.
- Stainless Steel Construction - Corrosion-resistant frame and bath for durability in chemical environments.
- Beaker Safety Holders - Secure placement of beakers to prevent spills and maintain consistent treatment.
- Compact Design - Lab-friendly size for easy integration into research and quality control spaces.
- Low Liquor Ratio Operation - Efficient dyeing using minimal dye bath volume (e.g., 1:5 to 1:20), reducing chemical and water use.
- Quiet and Stable Performance
water bath/Shaker bath Dyeing machine
Digital Bench top PH Meter
Digital Bench top PH Meter
Digital Bench top PH Meter
Brand: Hanna Model: HI2002 Country of Manufacture: Romania Origin: USA
Digital Bench top PH Meter
Single parameter of Digital Bench top PH Meter features user-friendly tablet design with bench, portable or wall mount options for ultimate flexibility. Switch from portable to bench in the same procedure or clear the surface for easier working and hang on the wall. Digital Bench top PH Meter Range -2.00 to 16.00pH; pH Digital smart electrode compatible Accuracy: ±0.01 pH edge® pH is dedicated to testing pH. Using Hanna's latest innovation in technology and design, edge® can be adapted to suit your working method. Select from hand held, wall mount or bench top - or switch between them all. edge® is happy any which way. Simply plug in the electrode, then play. Measurement is simpler, quicker and more accurate than ever. Results are fast and reliable. Combining high precision technology with the user-friendly dimensions and format of a small digital tablet, edge® is breaking new ground in electrochemistry. This is a must-have meter for your laboratory.| pH Range | basic mode: -2.00 to 16.00 pH; standard mode: -2.000 to 16.000 pH | |
| Resolution | basic mode: 0.01 pH; standard mode: 0.001 pH | |
| Accuracy (@25°C) | basic mode: ±0.01 pH; standard mode: ±0.002 pH | |
| Calibration | basic mode: automatic, up to three points calibration, 5 standard buffers available; standard mode: automatic, up to five point calibration, 7 standard buffers available and two custom buffers | |
| Temperature Compensation | automatic, -5.0 to 100.0°C (using integral temperature sensor) | |
| Electrode Diagnostics | standard mode: probe condition, response time and out of calibration range | |
| mV pH Range | ±1000 mV | |
| Resolution | 0.1 mV | |
| Accuracy (@25°C) | ±0.2 mV | |
| ORP Range | ±2000 mV | |
| Resolution | 0.1 mV | |
| Accuracy (@25°C) | ±0.2 mV | |
| Temperature Range | -20.0 to 120.0°C | |
| Resolution | 0.1°C | |
| Accuracy | ±0.5°C | |
| Additional Specifications: | ||
| Probe | HI-11310 digital glass body pH electrode with 3.5mm connector and 1m cable | |
| Logging | up to 1000 (400 for basic mode) records organised in: manual log-on demand (max. 200 logs), manual log-on-stability (max. 200 logs), interval logging (max. 600 samples; 100 lots) | |
| Connectivity | 1 USB port for storage; 1 micro USB port for charging and PC connectivity | |
| Environment | 0 to 50°C; RH max 95% non-condensing | |
| Power Supply | 5 VDC adapter (included) | |
| Dimensions | 2020 x 140 x 12 mm | |
| Weight | 250 g |
- High Accuracy and Resolution
- Digital Display - Large, clear LCD or LED screen shows pH readings, temperature, and sometimes mV or ion concentration. - Some models include a backlit display for better visibility.
- Electrode System - Uses a pH-sensitive electrode (usually glass) connected to a reference electrode. Electrodes are often replaceable and require regular calibration and maintenance.
- Temperature Compensation - Automatic or manual temperature compensation to correct pH readings based on sample temperature. - Integrated temperature sensors or separate probes are used.
- Calibration Functions - Supports 2-point, 3-point, or multi-point calibration using standard buffer solutions. - Auto-recognition of calibration buffers in advanced models.
- Data Storage and Connectivity - Internal memory for storing results. - USB or RS232 ports for data export to PCs or printers; some models support wireless connectivity.
- Sturdy Design - Benchtop models are larger and more stable than portable meters. - Often come with a durable casing and electrode arm for hands-free operation.
- High Accuracy and Precision
- User-Friendly Interface- Digital displays (LCD/LED) make readings easy to see and interpret.- Many models offer intuitive controls and guided calibration, simplifying operation.
- Advanced Calibration Features- Supports multi-point calibration for improved accuracy across a wide pH range.- Some models automatically recognize buffer solutions, reducing user error.
- Temperature Compensation- Automatic temperature compensation (ATC) corrects readings based on sample temperature, ensuring accuracy.
- Stable and Durable Design- Benchtop units are more robust and stable than handheld devices, reducing the risk of spills or tipping.- Often include electrode holders or arms for secure, hands-free measurements.
- Data Management and Connectivity- Built-in memory for storing measurement data.USB, RS232, or wireless connectivity for exporting data to computers or laboratory information systems (LIS).
- Multi-Functionality- Some models also measure ORP (oxidation-reduction potential), ion concentration, or conductivity.- Suitable for a variety of testing needs beyond just pH.
- Ideal for Long-Term Use- Designed for prolonged and repeated use in laboratory environments.- Replaceable electrodes and parts extend the meter’s usable life.
- Compliance and Documentation- Data logging features support documentation and compliance with regulatory standards in regulated industries (e.g., pharma, food, environmental testing).
Bursting strength tester
Bursting strength tester
true burst
- Available with automatic test strip feeder Measurements are simple to make with the Mullen type Bursting Strength Tester. Fast automatic measurements Measurement starts automatically once a test piece has been placed in the measuring gap. The clamping foot descends, and a bursting strength measurement is made.
- Bursting pressure can reach up to 1.2MPa 5. The maximum burst and expansion degree can reach 70mm. 6. Strengthen the lighting system on the test surface. 7. The main aerodynamic force helps to clamp the sample system. 8. A variety of test areas are available, and the switching is easy.
- A variety of unit conversions between Chinese and English. 10. Reliable anti-pinch safety protection design. [Technical parameter]: 1. Test range: (0～1)Mpa (the range above 1Mpa needs to be customized) 2. The minimum graduation value: 0.0001Mpa 3. Pressurization mode: direct pressurization, timing pressurization, and expansion degree pressurization.
