Auxiliary Tool Intervention and Material State Behavior: From Alcohol Ink to Oil Pastels

In long-term observations of different material behaviors, a clear distinction emerges: different materials do not rely on the same tool system during their processes of state change, formation, and solidification.

The tools referenced here primarily refer to auxiliary tools that physically intervene during the material behavior process. They do not necessarily perform traditional painting functions—some are not traditional painting tools at all—yet they continuously participate as materials transition from one physical state to another.

Therefore, the relationship between tools and materials cannot be categorized simply under "painting tools." Rather, the actual behavior state of the material dictates which tools enter the process.

1. Auxiliary Tools in the Alcohol Ink System

In the observation of alcohol ink behavior, the primary tools involved include heat guns, straws, droppers, and cups or containers used to hold and transfer liquid.

• Non-Traditional Attributes of Heat Guns: A heat gun is not a traditional painting tool, nor does it directly leave lines or brushstrokes on a substrate. Its mode of action is to intervene in the motion state of the material by outputting heat and airflow. Under manual operation, the flow direction, backflow patterns, and active duration of alcohol ink change according to the airflow. The heat gun thus becomes an important auxiliary factor in this material behavior chain.
• Transfer and Auxiliary Tools: Straws and droppers primarily participate in the quantitative transfer and localized intervention of liquid; cups and various containers hold, mix, and transfer materials; paper towels and cotton swabs are used for localized absorption and auxiliary cleanup.
• Distinct Tool Systems: The behavior process of alcohol ink shows that traditional painting tools like brushes and sponges are not necessary components for all material behaviors.

2. Tool Intervention from Powder Pigments to Liquid State

When pigments transition from a dry powder state into a liquid paste state, the form of tool intervention shifts.

• Containment and Mixing Tools: Measuring cups and containers enter the process alongside the transfer of material. Mixing tools directly participate in blending the powder with binders.
• Grinding and Form-Processing Tools: In records of certain pigments, initial mixing does not mark the end of material processing; further particle grinding may be required. Tools entering at this stage include glass muller tools, scrapers, and palette knives.
  • Glass Mullers: They do not carry painting functions, yet they directly participate in fine particle processing while the pigment forms a liquid material.
  • Dual Attributes of Scrapers: A scraper serves both as an auxiliary tool during material preparation and as a tool to shape artwork directly during painting. This demonstrates that the function of a single tool can change depending on the material state.

3. Bottling Tools and Material Storage

When pigments enter a liquid state and proceed to bottling and storage, the container itself becomes a participating element in material behavior.

• Functional Extension of Containers: Containers such as squeeze bottles and glass bottles not only store liquid pigments temporarily or over long periods, but also directly participate in the filling process. Materials undergo state changes inside the container—such as settling, separation, particle fallout, bubble formation, and subsequent drying—making the container a physical spatial carrier where material changes occur.
• Cross-Stage Functional Shift: Certain storage containers can re-enter the painting process later. For example, in certain acrylic operations, squeeze bottles are used directly to hold, transfer, and apply liquid acrylic onto canvases. Containers thus convert from storage carriers into operational auxiliary tools or painting tools.

4. Tool Relationships in Solid Watercolor

After pigments form solid watercolors, the material presents dry, solid, and non-flowing characteristics, causing tool relationships to shift toward active application.

• Medium Role of Water and Brushes: When water contacts solid watercolor, the surface layer re-forms a fluid, transferable liquid portion. At this point, watercolor brushes (including brushes of different sizes, tip widths, softness, and material compositions) become the primary tools for material transfer.
• Role Positioning of Tools: At this stage, water and brushes are not external add-ons, but function as connecting mediums that reactivate the solid material into a liquid painting state.

5. Diverse Tools in the Acrylic System

Acrylic materials correspond to diverse tool intervention modes, with tool combinations changing according to application styles and the addition of fluidity mediums.

• Differences Between Traditional and Fluid Forms: Traditional painting forms rely mainly on standard tools like paintbrushes. In fluid acrylic observations, the tool system shifts to mixing tools, holding cups, large-capacity mixing vessels, and air-blowing tools.
• Process Participation: These auxiliary tools participate throughout the entire process—from transferring acrylic from containers to substrates, spreading and flowing, to final drying and curing.

6. Contact-Based Tools in the Oil Pastel System

Oil pastels possess a solid physical form that can be directly held and moved, meaning basic painting actions do not require additional tools.

• Direct Contact Without Tools: Oil pastels make direct physical contact with substrates to leave marks.
• Auxiliary Contact Tools: When color blending, surface smoothing, or texture adjustments are required, palette knives, paper stumps, and cotton swabs enter the process.
• Mechanical Contact Features: Because oil pastels do not undergo solvent evaporation or drying processes like alcohol ink or liquid pastes at room temperature, tool interventions do not alter material phase changes. Instead, they manifest as mechanical contact and physical shaping between external tools and solid materials.

7. Summary of Tool and Material Behavior Relationships

Comprehensive observation of these art material operations reveals the following objective characteristics:

1. Distinction Between Auxiliary Tools and Painting Tools: Tools in material behavior are not equal to traditional painting tools. Auxiliary tools like heat guns, glass mullers, measuring cups, stirrers, and squeeze bottles do not draw lines directly, but they dictate how materials are transferred, mixed, held, moved, and preserved.
2. Dynamic Conversion of Tool Roles: Tool functions change according to the active stage of the material. A container converts from a storage carrier to a mixing space or a painting tool; a scraper converts from a pigment preparation tool to a surface-shaping tool.
3. Material State Dictates Tool Requirements:
   • Alcohol Ink: Relies on holding containers, liquid transfer tools, and airflow/heat-pushing tools.
   • Powder Pigments: Relies on containment vessels, mixing tools, grinding tools, and storage bottles.
   • Solid Watercolor: Relies on water as an activating medium and brushes as transfer tools.
   • Acrylics: Combines traditional paintbrush systems with fluid mixing/air-blowing auxiliary tool systems.
   • Oil Pastels: Relies primarily on direct contact, supplemented by mechanical blending tools like palette knives and stumps.

Tools serve as objective connecting elements within material behavior systems. The presence of tools documents how auxiliary factors intervene and what practical roles they play as different materials undergo physical state changes.