Blank Plaster Empty Sanfu Patch – High-End Oval Medicated Patch Base | Zhuopu Medical

Empty Sanfu Patch with Non-Adhesive Flocked Pad

Empty Sanfu Patch is an unmedicated adhesive carrier developed for buyers who need to add their own herbal paste, ointment, powder or compatible liquid formulation.

The oval patch combines a soft, non-adhesive flocked center with a surrounding adhesive border. The central area receives the buyer’s formulation, while the adhesive border helps secure the patch around the intended application point.

Unlike a finished herbal plaster, this Blank Medicated Patch contains no medicine or active ingredient. It gives TCM product manufacturers, herbal formulation companies, clinics, pharmacies and private-label brands greater control over formulation, loading amount, patch size and packaging.

A Practical Carrier for Buyer-Added Formulations

The performance of an Empty Sanfu Patch depends on more than its external dimensions. Buyers must consider how the formulation interacts with the central pad, adhesive border, release liner and individual package.

The flocked center is designed to receive and hold the applied material without placing adhesive directly in the loading area. Its surrounding adhesive border provides fixation while leaving the center available for the buyer’s formulation.

This structure makes the Empty Sanfu Patch suitable for:

• Sanfu patch programs

• Acupoint application products

• Traditional herbal paste systems

• Empty herbal patch kits

• Custom blank plaster projects

• Clinic-prepared herbal applications

• Private-label Blank Medicated Patch programs

The patch is supplied empty. Formulation filling, dosage selection, performance claims and final product registration must be determined by the buyer according to the intended market.

Match the Empty Sanfu Patch to Your Formulation

A suitable Blank Medicated Patch must be selected around the characteristics of the formulation rather than appearance alone.

For herbal paste or ointment:

Confirm viscosity, spreading behavior, loading weight and the possibility of migration from the central pad toward the adhesive border.

For herbal powder or granules:

Evaluate particle size, required loading depth, containment during packing and whether the central flocked surface provides sufficient holding capacity.

For liquid extracts:

Confirm the dosage per patch and conduct retention, seepage and packaging compatibility tests. Not every liquid formulation is suitable for the same pad structure.

For longer intended wear:

The buyer should evaluate adhesive strength, skin-contact performance, border width and removal characteristics under the actual conditions of use.

Providing this information before sampling helps Zhuopu recommend a more suitable Empty Sanfu Patch configuration and reduces unnecessary development cycles.

Empty Patch or Finished Medicated Plaster?

Choose the Empty Sanfu Patch when:

• You already own or prepare the herbal formulation.

• You need an unmedicated carrier.

• You want control over the loading amount.

• You require a central non-adhesive application area.

• You need custom patch and packaging specifications.

Choose a finished medicated plaster when:

• You want a patch supplied with the active formulation already included.

• You do not plan to fill or prepare the patch yourself.

• You require a ready-to-market formulation, subject to local regulatory approval.

These finished plaster products serve a different procurement requirement from the Empty Sanfu Patch, which is supplied without medicine for buyer-added formulations.

Why Buyers Choose an Empty Sanfu Patch

Formulation freedom

The patch is supplied without herbal medicine or active ingredients, allowing buyers to use their own proprietary formula and control the final loading amount.

Defined loading area

The central non-adhesive flocked pad creates a visible and consistent area for applying paste, powder or other compatible preparations.

Separate adhesive border

The adhesive is positioned around the center instead of covering the formulation-loading surface. This helps keep the fixation function separate from the central application area.

OEM-ready structure

The overall patch size, central pad dimensions, border width, shape and packaging can be developed around the buyer’s product concept.

Suitable for private-label development

The Empty Sanfu Patch can be supplied as a blank carrier or incorporated into a wider OEM project involving custom pouches, retail boxes, labels and instructions for use.

OEM and Private-Label Options

Zhuopu Medical supports customized Empty Sanfu Patch projects for manufacturers, distributors and healthcare brands.

Available development options may include:

• Customized oval, round or special shapes

• Different overall patch dimensions

• Customized center pad size

• Different adhesive and backing requirements

• Individual pouch packaging

• Custom printed retail boxes

• Private-label artwork

• Multilingual labels and instructions

• Sample development before bulk production

Sampling and Validation Process

Step 1: Define the formulation

Provide the physical form, viscosity, ingredients relevant to material compatibility and intended loading amount.

Step 2: Confirm the patch structure

Select the overall size, center pad dimensions, adhesive border width, shape and packaging format.

Step 3: Produce samples

Sample Empty Sanfu Patches are prepared for evaluation before production specifications are finalized.

Step 4: Conduct buyer validation

The buyer should test formulation retention, migration, adhesion, removal, packaging compatibility and skin-contact performance using the intended finished product.

Step 5: Approve packaging and bulk specifications

After the structure, materials and artwork are approved, the project can proceed to bulk production.

This process is especially important when the Blank Medicated Patch will be combined with a proprietary herbal formulation.

Important Product Note

The Empty Sanfu Patch is a blank application carrier. It is not automatically a finished medicated product or a validated transdermal drug-delivery system.

Final performance depends on the customer’s formulation, dosage, filling process, adhesive selection, intended wear conditions and packaging. Buyers are responsible for validating the finished product and meeting the registration, labeling and safety requirements of their target markets.

Unless otherwise specified and documented, the patch should not be described as sterile. It is intended for application to clean, dry and intact skin and should not be positioned as a wound dressing.

Frequently Asked Questions

Does the Empty Sanfu Patch contain herbal medicine?

No. It is supplied as an empty, unmedicated patch base. The buyer adds or arranges the filling of the intended formulation.

What can be placed on the central pad?

The flocked center may be used with herbal paste, ointment, powder or compatible liquid preparations. Actual suitability must be confirmed through formulation and packaging tests.

Is the center of the patch adhesive?

No. The central flocked pad is non-adhesive. The adhesive is located on the surrounding border to secure the patch.

Can the size of the Blank Medicated Patch be customized?

Yes. The overall dimensions, center pad size, border width, shape and packaging can be discussed according to order requirements.

Can Zhuopu fill our herbal formulation?

Filling requirements should be evaluated as a separate OEM project. Provide the formulation type, loading amount, target market and packaging requirements for feasibility review.

Is this a transdermal patch?

Not by itself. The Empty Sanfu Patch is a carrier for an added formulation. Whether a finished product functions as a transdermal delivery system depends on formulation development, testing and regulatory validation.

Is the patch sterile?

Sterility should not be assumed. If sterile supply is required, include this requirement in the initial inquiry so manufacturing and packaging feasibility can be assessed.

Request an Empty Sanfu Patch Sample

Looking for an Empty Sanfu Patch, Blank Medicated Patch or Empty Herbal Patch for your formulation?

Send us the following information:

• Formulation type

• Loading amount per patch

• Overall patch size

• Center pad size

• Required border width

• Packaging format

• Target market

• Estimated order quantity

Our team will review your requirements and recommend a suitable sample configuration for testing