1. Introduction
This manual provides essential information for the proper use and care of your SINMARK Self-Adhesive Thermal Labels. These labels are designed for use with KAYSION SK20, SK27, SK35, SK45, and SK58 printers, offering a versatile solution for various labeling needs such as barcodes, names, addresses, and general organization.
2. Product Overview
The SINMARK thermal labels are a convenient and efficient labeling solution. They feature a thermal-sensitive coating that eliminates the need for ink or carbon ribbons, reducing operational costs and simplifying the printing process. The labels are self-adhesive, allowing for quick application after printing.

Figure 2.1: Six rolls of SINMARK thermal labels, each measuring 1.57 inches by 1.18 inches, with 230 labels per roll.

Figure 2.2: Detailed dimensions of the SINMARK thermal labels, including label size and roll core diameter.
3. Specifications
| Attribute | Detail |
|---|---|
| Model Number | 4510003X6 |
| Label Dimensions | 1.57 inches x 1.18 inches (40mm x 30mm) |
| Labels per Roll | 230 labels |
| Rolls per Set | 6 rolls |
| Color | White (also available in cherry blossom pink, sky blue, coral orange) |
| Shape | Square/Rectangular |
| Material Type | Paper (Thermal Sensitive) |
| Adhesive Type | Self-Adhesive, Ultra-strong |
| Special Features | Matte scratch-resistant, moisture-resistant, oil-resistant |
| Compatible Printers | KAYSION SK20, SK27, SK35, SK45, SK58 series |
| Item Weight (per set) | 10.6 ounces |
| Package Dimensions | 7.09 x 3.54 x 1.57 inches |
| Manufacturer | Shanghai Dengyuan Information Technology Co., Ltd |
4. Key Features
- Direct Thermal Printing: No need for carbon ribbons or ink cartridges. The thermal sensitive coating reacts directly to heat from the printer head, simplifying operation and reducing consumable costs.
- Fast and Efficient: Designed for high-speed label printers, these labels offer quick printing without any drying time, allowing for immediate application.
- Durable Surface: Features a matte, scratch-resistant surface that enhances print clarity and contrast.
- Resistant Coating: Treated with a surface coating that provides resistance against moisture and oil stains, making them suitable for various environments, including catering and cold chain logistics.
- Versatile Applications: Ideal for a wide range of uses including retail warehousing, medical industry, food delivery, gift labeling, address labels, barcode printing, and general organization.

Figure 4.1: Ultra-strong adhesive properties, including waterproof and oil-proof features.
5. Setup and Installation
These labels are designed for use with compatible thermal label printers, such as the KAYSION SK20, SK27, SK35, SK45, and SK58 series. Follow your printer's specific instructions for loading thermal label rolls.
- Open Printer Cover: Carefully open the cover of your thermal label printer according to its manual.
- Locate Spindle: Identify the label roll spindle or holder within the printer.
- Load Label Roll: Place the SINMARK label roll onto the spindle, ensuring the labels feed from the bottom and the thermal-sensitive side is facing the print head. The labels should unroll smoothly.
- Feed Labels: Pull a few labels past the print head and align them with the label guides. Ensure the labels are straight and not creased.
- Close Cover: Close the printer cover securely.
- Calibrate (if necessary): Some printers may require calibration after loading new labels. Refer to your printer's manual for calibration procedures.
6. Operating Instructions
Once the labels are properly loaded into your compatible thermal printer, you can proceed with printing and application.
- Design Your Label: Use your printer's software or a compatible design program to create the desired label content (text, barcodes, images).
- Select Printer Settings: Ensure your printer settings are configured for thermal labels and match the dimensions of the SINMARK labels (1.57in x 1.18in).
- Print Labels: Send the print job to your thermal printer. The labels will print quickly without the need for ink.
- Peel and Apply: Carefully peel the printed label from its backing. The strong self-adhesive allows for immediate and secure application to various surfaces.

Figure 6.1: Examples of label application in different scenarios.

Figure 6.2: Further examples demonstrating the versatility of SINMARK labels for organization and gifting.
7. Care and Storage
- Storage Conditions: Store unused label rolls in a cool, dry place, away from direct sunlight, high temperatures, and humidity. Extreme conditions can affect the thermal coating and adhesive quality.
- Handling: Avoid touching the thermal-sensitive surface or the adhesive side of the labels unnecessarily to prevent smudges or reduced stickiness.
- Printer Maintenance: Regularly clean your thermal printer's print head as recommended by the printer manufacturer to ensure optimal print quality and prolong the life of the print head. Dust and debris can affect label printing.
8. Troubleshooting
If you encounter issues while using your SINMARK thermal labels, consider the following common problems and solutions:
- Poor Print Quality / Faded Prints:
- Ensure the labels are loaded correctly with the thermal-sensitive side facing the print head.
- Check your printer's darkness settings and adjust if necessary.
- Clean the print head of your thermal printer.
- Verify that the labels have not been exposed to excessive heat or sunlight during storage.
- Labels Not Feeding Correctly:
- Ensure the label roll is properly seated on the spindle and aligned with the guides.
- Check for any obstructions in the paper path.
- Calibrate your printer for the label size if it has this feature.
- Labels Not Sticking:
- Ensure the application surface is clean, dry, and free of dust or oil.
- Verify that the labels have been stored correctly and not exposed to extreme temperatures or humidity, which can degrade the adhesive.
- Apply firm, even pressure when attaching the label.
- Printer Not Recognizing Labels:
- Confirm that your printer is compatible with direct thermal labels.
- Check printer settings to ensure the correct label type and size are selected.
9. Warranty and Support
SINMARK strives to provide high-quality products. For any questions, concerns, or technical support regarding your SINMARK thermal labels, please contact SINMARK customer service through the retailer where the product was purchased or visit the official SINMARK website for contact information.
Please retain your purchase receipt for any warranty claims or support inquiries.

