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MANUFACTURING / PRODUCT DECORATION

Screen Printing for Plastic & Electronic Products

Logo, text and graphic printing with defined positioning, layer sequence and visual checks.

Xinyinhai’s archived work instructions show how decoration connects with molding and assembly. They document fixtures, separate printing steps and sample comparison. We review the setup for your part and artwork.

PROCESS EVIDENCEARCHIVED PHOTOGRAPH
Archived manufacturing photograph of an operator screen printing a base layer on a plastic part
01
The print starts with a positioned part.

Original work-instruction photograph: screen lowered over a fixture-held plastic part for base-layer printing.

Fixture-based positioningLayer-by-layer printingDefined visual inspectionMolding-to-assembly review

01 / THE CONTROL POINTS

What screen-printing controls are documented at Xinyinhai?

Position, color, clarity and part condition need explicit references. These are the practical control points reflected in the archived printing and inspection instructions.

01

Print position

Locate the part in its fixture and check the graphic against the agreed placement.

02

Color consistency

Compare the printed color with the confirmed color or physical sample reference.

03

Graphic clarity

Check that text, edges and graphic details are clear and complete.

04

Layer registration

Check that the surface layer aligns with the base layer and intended artwork.

05

Surface cleanliness

Look for visible dirt or unwanted marks on the plastic surface.

06

Part protection

Check for visible scratches or damage associated with handling.

02 / FROM REQUIREMENT TO REFERENCE

A defined screen printing sequence

Review the requirement, locate the part, print in sequence and inspect the result. The archived flow directly connects base-layer printing, surface-layer printing and QC.

  1. 01
    DEFINE

    Artwork review

    Confirm artwork, print area, color reference and acceptance requirements.

  2. 02
    PREPARE

    Part preparation

    Review material and finish; check the surface and handling needs.

  3. 03
    LOCATE

    Fixture positioning

    Place the part in the locating fixture in the specified orientation.

  4. 04
    PRINT

    Base-layer printing

    Lower the screen and print the first layer for the agreed sequence.

  5. 05
    REGISTER

    Additional layer

    Position the base-printed part and align the surface layer.

  6. 06
    INSPECT

    Visual QC

    Check position, color, clarity, registration and part condition.

  7. 07
    VERIFY

    Sample verification

    Compare the result with the approved sample and agreed requirements.

Part positioning & printingInspection & reference check

The seven-step review framework adds artwork and preparation decisions around the documented printing sequence. Layer count, surface preparation and drying or curing requirements must be agreed for the actual project.

03 / POSITION BEFORE PRINTING

Fixture Positioning for Screen Printing

The archived instruction places the plastic part in a locating fixture in a specified orientation before the screen is lowered. The fixture provides a physical reference for the print location.

Archived work-instruction photograph showing hands placing a transparent plastic part into a screen-printing locating fixture
Internal work-instruction example showing fixture-based part positioning before screen printing. Cropped from the original photograph.
POSITIONING PRINCIPLE SCHEMATIC / NOT TO SCALE
Reference edgePrint areaPlastic partDefined orientation · supported location123
Control orientation and support the part relative to the intended print area.
Repeatable orientation
Use the same defined loading direction.
Print-location control
Relate artwork placement to the located part.
Operator consistency
Give the loading step a clear physical reference.
Repeated production
Review fixture fit and the reference before a new run.

04 / BASE LAYER → SURFACE LAYER → QC

Print Layer Alignment & Registration

For multi-layer graphics, each printing step must maintain alignment with the previous layer and the agreed artwork. The two archived work instructions show separate base-layer and surface-layer operations.

LAYER REGISTRATION / ILLUSTRATIVE ARTWORK01 / Base layer02 / Surface layer03 / Aligned result
  1. Print the baseEstablish the first graphic layer.
  2. Locate againPosition the base-printed part for the next operation.
  3. Print & compareInspect the relationship between the layers.
Detail from the archived surface-layer printing instruction showing the operator drawing a squeegee across the inked screen
Surface-layer operationReal squeegee detail from the second work instruction.

This is one documented layer sequence. It does not establish a universal process for every multi-color design. Colors in the schematic illustrate alignment; they are not a customer artwork or a print-performance claim.

05 / LOOK AT THE RESULT

What gets checked on a printed plastic part?

The inspection instruction names six visual criteria and directs the inspector to the sample. For a new project, agree the sample and written requirements that define acceptance.

REFERENCE → COMPARISON → DECISION

A defined reference makes inspection useful.

Approved referencePrinted part

Approve the artwork, placement, color reference and cosmetic criteria together.

Illustrative inspection principle
  1. Correct print location

    Graphic placement matches the specified position on the part.

  2. Correct color

    The printed color agrees with the confirmed reference.

  3. Clear graphic

    Text and graphic details are legible, with no obvious missing or blurred areas.

  4. Accurate layer registration

    The printed layers align as intended in the artwork.

  5. Clean plastic surface

    The visible surface is free of unwanted dirt and marks.

  6. No visible handling damage

    The plastic part has no visible damage against the agreed cosmetic criteria.

  7. Approved sample / requirement comparison

    The inspected part is checked against the agreed reference, not memory.

Visual checks do not establish adhesion or wear resistance. Specify any additional validation during the project review. Explore product-testing planning.

06 / RISK → CONTROL

Make appearance risks visible

Positioning and inspection help manage printing risks. The controls below show what to check and compare; they do not imply defect-free output or an unverified yield.

Misalignment
Specified part orientation + fixture positioning + print-location check.
Blurred printing / incomplete ink transfer
Visual clarity and completeness check against the sample or artwork.
Layer registration error
Positioning at each print stage + comparison of the combined graphic.
Wrong color
Color reference confirmation + visual comparison of the printed result.
Surface contamination
Surface cleanliness check during preparation and final visual inspection.
Scratches / handling damage
Agree part-handling needs + inspect the plastic surface for damage.

07 / ONE PRODUCT, CONNECTED OPERATIONS

From molded part to finished decoration

We review plastic manufacturing, decoration and assembly as connected parts of your product project. Print access and handling requirements help determine when decoration belongs in the sequence.

  1. 01

    Injection molding

    Part geometry, material & finish

  2. 02

    Screen printing

    Locate, print & compare

  3. 03

    Assembly

    Protect decorated surfaces

  4. 04

    Inspection

    Check the complete product

  5. 05

    Packaging

    Define handling & protection

The final route depends on the part. Printing may need to happen before assembly if the assembled product restricts screen or fixture access. Review the OEM manufacturing controls.

Review customization options

08 / MANUFACTURING EVIDENCE

Working instructions behind the control points

Xinyinhai’s archived manufacturing work instructions show documented positioning, layered printing and visual inspection controls. They provide historical process evidence; the setup and validation for your product are confirmed during review.

  1. 01

    Process flow

    Base layer → surface layer → QC.

  2. 02

    Base-layer work instruction

    Specified part orientation, locating fixture and screen operation.

  3. 03

    Surface-layer work instruction

    Position the base-printed part for the next printing step.

  4. 04

    Inspection criteria

    Six visual checks with a reference-sample comparison.

09 / APPLICATION FIT

Where plastic screen printing can fit

These are application types to review, subject to the actual material, geometry, artwork and intended use. The archived product example does not define the current product range.

Consumer electronics housings

Brand marks, product text and interface graphics on accessible plastic surfaces.

Interactive & educational products

Symbols, simple instructions and graphics reviewed with the product function.

Electronic gifts & promotional products

Customer-authorized artwork and logo placement on the selected product.

Enclosures, buttons & accessories

Legends and identification graphics, subject to geometry and material review.

10 / CHOOSE FOR THE PART

Screen printing or another decoration method?

Decoration method selection depends on geometry, material, artwork, durability and production requirements. Use the comparison to frame a review, then confirm the route with the actual part.

General selection guidance. Alternative methods are not presented as verified in-house capabilities.
MethodWhat it offersWhat to review
Screen printingDirect ink graphics on a surface the screen can reach.Print area, surface geometry, ink/material compatibility and the layer sequence.
Pad printingGraphics transferred with a flexible pad onto shaped surfaces.Pad access, geometry and graphic dimensions; confirm by trials.
Labels / stickersArtwork carried on an applied label.Adhesive compatibility, surface texture, label edges and use conditions.
In-mold decorationDecoration integrated during molding.Coordinate tooling, film/resin compatibility and the molded part design.
Laser markingIdentification marks on a compatible material.Test the actual resin and color for suitable contrast and appearance.
Technical references for method selection

General process guidance: Nazdar: substrate compatibility; Teca-Print: pad printing; Avery Dennison: label adhesion; Serigraph: in-mold decoration; TRUMPF: laser marking plastics. These references do not identify the inks or equipment used at Xinyinhai.

11 / PREPARE A USEFUL INQUIRY

What we need to review your printing requirement

Send the part and the artwork together. A logo file alone does not establish print access, material compatibility, color acceptance or the production setup.

01ARTWORK

Artwork / vector file

Editable artwork, outlined text, artwork revision and separate layers or colors where applicable.

02DRAWING

Printing location

Part drawing with print area, orientation, dimensions and reference edges.

03COLOR

Color requirement

Pantone reference where specified, number of colors and a physical color sample if available.

04MATERIAL

Part material

Plastic type and grade if known, molded color, and whether parts are supplied or need molding.

05SURFACE

Surface finish

Texture, gloss, coating and any surface features that affect print access or appearance.

06REFERENCE

Approved sample

Reference part or representative sample, with approved artwork and revision identified.

07ACCEPTANCE

Cosmetic acceptance criteria

Viewing requirements, critical areas and any required adhesion, wear or chemical-resistance tests.

08QUANTITY

Expected production volume

Trial quantity, order quantity, repeat-order forecast and target schedule.

A Pantone reference communicates your requested color; it is not a claim of instrument-based color matching or a universal color-difference tolerance. Confirm the physical sample and acceptance method together.

12 / BUYER QUESTIONS

Screen printing questions, answered directly

Key decisions for procurement, product and engineering teams reviewing printed plastic parts.

What is screen printing on plastic products?

Screen printing transfers ink through a patterned screen onto a plastic surface to form logos, text or graphics. Part geometry, material, surface finish and artwork determine whether the process is suitable.

Can you screen print logos on injection-molded plastic parts?

We can review logo and graphic printing as part of a plastic or electronic product manufacturing project. Share the molded part, material, surface finish and artwork so print access, positioning and the required result can be assessed before quotation.

How do you control print position?

The archived work instructions specify placing the plastic part into a locating fixture in a defined orientation before lowering the screen. Visual inspection then checks the print location. For a new part, the fixture and acceptance requirements must be defined for that geometry.

How do you control multi-color or multi-layer registration?

The documented example uses a base-layer operation followed by positioning the base-printed part for a surface-layer operation. QC checks the alignment of the printed layers against the reference sample. The number of layers, their order and the setup are agreed for each new artwork.

What artwork files are required for screen printing?

Provide editable vector artwork where available, with text outlined, the artwork revision identified and colors or layers separated where applicable. Include a dimensioned placement drawing, color references and a sample if available. Confirm the accepted file format during the project review.

Can screen printing be integrated with injection molding and assembly?

Yes. Printing can be reviewed alongside molding, assembly, inspection and packaging for a manufacturing project at Xinyinhai. The sequence depends on access to the printing surface, part handling and the agreed assembly plan; decoration may need to take place before assembly.

How do you inspect screen-printed plastic parts?

The archived inspection instruction checks print position, correct color, graphic clarity, layer registration, surface cleanliness and absence of damage, with reference to the sample. Any additional adhesion, abrasion or chemical-resistance requirements must be specified and confirmed for the project.

Is screen printing suitable for low-volume custom products?

Suitability depends on screen and fixture preparation, the number of colors, part geometry and the quantity. Share the trial and production volumes for review. No universal minimum order quantity or cost advantage is assumed before the project is assessed.

YOUR NEXT PRODUCT

Need Screen Printing for a Plastic Product?

Share your part drawing, artwork, material, color requirement and target quantity. Bring decoration into the manufacturing review while the product is still being defined.

Prepare your printing brief

  • Part drawing and print location
  • Artwork, layers and color reference
  • Material, finish and sample
  • Acceptance criteria and target quantity
Download the Printing Project Brief

Use the inquiry form to prepare your brief, or share it with your existing project contact. This download prepares your inquiry; it does not submit it.