Leading Label Die Cutting Machine Manufacturer

  • Die-cutting, rewinding, and waste stripping in 1 pass
  • PLC control, graphic touch screen HMI
  • 2 sensors web guiding, 1 sensor register tracking
  • Optional punching, laminating or hot stamping unit
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Label Die Cutting Machine

Jota label die cutting machine could produce plain labels, stickers for small to medium run.

Many optional parts are available, such as punching unit, laminating unit, hot stamping unit.

Please submit your inquiry on this website, we will reply to you based on our expertise and experience.

Flatbed Label Die Cutting Machine

Jota Machinery: Flatbed Label Die Cutting Machine Factory in China

As Jota is the original label die cutting machine manufacturer,

you are always welcome to make a video call with us via WhatsApp,

we will show you around our factory and CNC center through the camera lens.

Jota Factory

Machining Material

  • Visible high-quality components.
  • Famous brands such as Siemens, Yaskawa, Delta, Schneider, Mitsubishi.
  • Self-supporting CNC processed sheet metal, precision parts.
  • Assembly raw materials provided by long-term cooperation suppliers.
Installation and Operation

Installation and operation user manual, wire connection diagram, tension controller guide.

Installation and operation video tutorial.

One-on-one remote video call assistance.

On-site installation and operation guidance.

FAQ
What's the delivery time?

Around 30-45 days, mainly depends on machine type.

Could you help us to buy other goods?

Sure, it is our honor to work for you.

If the machine's spare parts are broken, where could I get?

We will offer you some parts as backup, in case any part is broken within one year, we will sent you for free.

Could you tell us your client’s contact for us to checking machine on site?

Sure, if we have client in your country, we will offer.

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Analysis of Factors Influencing Die Cutting Quality of Adhesive Materials

Die cutting quality of adhesive materials is influenced by an array of factors, encompassing the precision of die-cutting equipment, the accuracy of die-cutting plates, and the compatibility of die-cutting blades with the material.

Furthermore the inherent characteristics of adhesive materials, such as the face stock, adhesive, and backing paper, significantly contribute to this quality.

Today, Jota Machinery will delve into how these 3 factors affect die-cutting quality in meticulous detail.

  1. Face stock
  2. Adhesive
  3.  Backing paper

Impact of Face Stock on Die Cutting Quality

  1. Types of Face Stock

Face stock primarily falls into two categories: paper and film.

Factors influencing die-cutting quality comprise the type, strength, and thickness of the face stock.

The cutting dynamics for ordinary paper slightly differ from those of film materials.

Film materials tend to peel off alongside labels during waste removal. Consequently, die-cutting film materials necessitates sharp, hard blades with a small angle, typically ranging between 30° and 42°.

Utilizing a large-angle die-cutting blade not only complicates die-cutting but may also result in incomplete cutting through the face stock, tearing of the backing paper, or curling of label edges, leading to adhesive seepage.

In essence, the precision required for die-cutting film materials surpasses that of paper materials, necessitating high precision across equipment, die-cutting plates, and backing paper.

The die-cutting process for paper materials involves a blend of cutting and paper tearing under stress.

As the blade descends, it also compresses the paper laterally. Hence, the die-cutting precision for paper materials is comparatively lower.

During sample analysis, it is common to encounter labels with rough edges, stemming from the inherent coarse fibers of the material fracturing.

Considering the die-cutting dynamics of paper materials and blade wear, flatbed die-cutting blades are typically set at a 52° angle. An excessively large angle escalates horizontal separation force, exacerbating material tearing and separation.

For film materials, die-cutting entails complete penetration of the material. Given that film materials are generally resilient and do not naturally tear, they must be entirely or at least four-fifths cut through; a two-thirds cut is insufficient.

  1. Strength of Face Stock

The strength of the face stock correlates with its thickness, polymer structure, and moisture content.

Throughout the die cutting process of adhesive materials, face stock strength notably impacts waste removal speed.

Elevated humidity weakens the material, rendering it susceptible to tearing and potentially hindering waste removal entirely.

Thus, when designing layouts, it is imperative to consider material strength and, through rigorous testing, judiciously arrange waste removal dimensions and speed to augment production efficiency and curtail material wastage.

  1. Thickness of Face Stock

Material thickness directly influences cutting depth.

Thicker materials are more amenable to die-cutting due to the larger tolerance, reducing the risk of cutting through the backing paper.

Conversely, thinner materials are prone to backing paper cuts when die-cut.

For instance, employing the same flatbed die-cutting machine to process 80g/m² and 60g/m² materials with identical backing paper, the 80g/m² material can be die-cut and waste removed smoothly, while the 60g/m² material frequently encounters waste removal interruptions, backing paper cuts, and label detachment, necessitating frequent plate adjustments and resulting in substantial waste.

Various factors contribute to this, but employing rotary die-cutting methods, minimizing the die-cutting area, and employing high-precision equipment can mitigate or obviate these issues.

Consequently, when die-cutting thin face stock, employing high-precision equipment, minimizing the die-cutting area (particularly for small labels), utilizing die plates from reputable manufacturers, and attentively considering backing plate precision are crucial.

Face stock thickness directly correlates with strength, directly impacting waste removal speed.

Comparative waste removal tests utilizing 80g/m² and 60g/m² materials demonstrate that the former’s production efficiency surpasses the latter by 20%–30%.

Impact of Adhesive on Die Cutting Quality

Common adhesives in adhesive materials encompass acrylic water-based latex, rubber hot melt adhesive, solvent-based adhesive, and acrylic adhesive, with latex and hot melt adhesive predominating.

Owing to variances in raw materials and formulations, adhesive physical and chemical properties diverge.

Water-based latex comprises minuscule capsules with relatively low cohesion, facilitating easy separation of adhesive layers, while hot melt adhesive comprises high-cohesion rubber substances, rendering adhesive layers resistant to separation.

Consequently, when die-cutting, if the material is water-based latex, labels can still be waste removed even if the adhesive layer is incompletely cut or uncut entirely since waste removal’s tensile force readily ruptures the adhesive layer.

Conversely, when die-cutting hot melt adhesive materials, incomplete die-cutting results in either labels peeling off with waste edges or backing paper cutting through.

Hot melt adhesive layers necessitate complete or near-complete cutting through to ensure smooth waste removal; otherwise, uncut adhesive film peels off with labels, escalating die-cutting complexity.

Thus, die-cutting latex adhesive materials is comparably easier, whereas hot melt adhesive materials demand heightened die-cutting precision, thereby explaining increased consumption and diminished production efficiency in processing hot melt adhesive materials.

Impact of Backing Paper on Die Cutting Quality

Backing paper quality constitutes a pivotal factor influencing die-cutting quality, encompassing thickness, smoothness, fiber structure, and strength.

Presently, backing paper is bifurcated into opaque and semi-transparent variants.

  1. Opaque Backing Paper

Opaque backing paper is distinguished by color (yellow and white) and structure (pre-coated with PE and non-coated).

PE coating serves a dual purpose: sealing paper surface pores to render it smooth and flat, thereby reducing requisite silicone oil quantity and cost, and enhancing die-cutting properties by acting as a cushioning layer endowed with certain toughness and elasticity, curbing backing paper breakage.

Empirical evidence evinces that PE-coated backing paper exhibits markedly superior tear resistance compared to non-PE-coated counterparts.

Thick backing paper labels primarily serve manual labeling purposes, wherein subpar die-cutting quality impedes manual labeling efficacy.

For instance, incomplete die-cutting may lead to labels peeling off together during manual waste removal.

In flatbed die-cutting machines, prevalent issues with opaque backing paper encompass backing paper breakage.

Hence, ensuring die-cutting blade precision and padding flatness while selecting backing paper characterized by superior flatness, high fiber tensile strength, and uniform thickness is imperative to enhance die-cutting quality.

  1. Semi-Transparent Backing Paper

Semi-transparent backing paper, also known as thin backing paper, typically employs glassine paper in label printing adhesive materials.

Two key glassine paper indicators—thickness uniformity and fiber structure—crucially impact die-cutting quality.

Thickness uniformity assumes particular significance in rotary die-cutting, as backing paper thickness determines die-cutting roller size.

Uneven thickness may prompt blade cutting through or failing to reach the backing paper, complicating waste removal.

Glassine paper fiber structure principally affects rotary die-cutting speed.

Fiber strength directly influences waste removal break speed, with higher speeds and tensile forces facilitating smoother waste removal.

Robust materials can accommodate increased die-cutting speeds.

However, for slower flatbed die-cutting, fiber structure exerts minimal influence on die-cutting quality.

Furthermore, fiber toughness and tear resistance substantially impact die-cutting quality.

Robust fiber backing paper may perform adequately on low-precision equipment, whereas brittle, less resilient fiber backing paper necessitates high-precision, quality equipment for successful die-cutting.

This underscores the critical role of equipment precision in die-cutting quality.

During testing our customer’s material , we encountered a scenario where two adhesive materials with identical face stock but differing backing paper were processed concurrently on two die cutting machines.

The outcome revealed that on high-precision equipment, both materials exhibited normal die-cutting quality.

However, on low-precision equipment, materials featuring less robust fiber backing paper encountered frequent issues, rendering normal production unattainable. This case elucidates that die-cutting quality hinges not only on the adhesive material itself but also on die cutting machine precision.

In conclusion, the die-cutting quality of adhesive materials is contingent upon both material characteristics and equipment precision.

By meticulously selecting appropriate face stock, adhesive, and backing paper, and operating on high-precision equipment, die-cutting quality and production efficiency can be markedly enhanced.

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