Scale type chemical indicator card with UV (ultraviolet) adhesive film
By using a UV adhesive coating process, combining a waterproof membrane layer and a UV adhesive layer, the problems of limited functionality and poor coating of chemical indicator cards are solved, thus achieving stability in sterilization monitoring and accuracy in measurements within the operating room.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHINVA MEDICAL INSTR CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-05
AI Technical Summary
Existing chemical indicator cards have limited functionality, and the coating process is inefficient and prone to heat shrinkage, affecting sterilization effectiveness and measurement accuracy.
The process employs a UV adhesive coating process, including a waterproof membrane layer, a UV adhesive layer, and a cardboard layer. The coating uses UV-cured adhesive to prevent heat shrinkage, and chemical indicator inks and graduation lines are incorporated to meet sterilization monitoring and measurement requirements.
It achieves monitoring stability and measurement accuracy during the sterilization process, avoids heat shrinkage problems, and improves coating efficiency and the utilization rate of measuring tools.
Smart Images
Figure CN224203775U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of indicator card auxiliary technology, and in particular to a scale-type chemical indicator card with UV adhesive coating. Background Technology
[0002] Highly hazardous materials packages should contain chemical indicators placed in the most difficult-to-sterilize areas. Changes in the color or shape of the chemical indicators can be used to determine whether sterilization requirements have been met, allowing sterilization personnel to promptly remove packages that have failed sterilization and ensuring the health and safety of patients.
[0003] In the medical field, chemical indicator cards are essential consumables for monitoring sterilization effectiveness. Printed with chemical indicator ink, they monitor whether the items inside the package have passed sterilization. However, existing chemical indicator cards are relatively limited in function, only providing basic sterilization indications and failing to meet other needs in special scenarios such as operating rooms. For example, during surgery, medical staff often need to use rulers to measure tumor size, nail length, etc., but suitable and sterilized measuring tools may be lacking, causing inconvenience to the surgical procedure. To ensure that the indicator cards are not affected by condensation during sterilization, manufacturers often laminate them. However, traditional chemical indicator card lamination processes have some drawbacks, such as low lamination efficiency and susceptibility to heat shrinkage. Heat shrinkage can cause the indicator cards to bend, affecting aesthetics and increasing usage costs. Furthermore, even if a measuring ruler is installed on the indicator card, shrinkage can prevent accurate measurements. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a scale-type chemical indicator card with UV adhesive coating, so as to solve the problems of single function and poor coating process of the existing chemical indicator cards.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: the scale-type chemical indicator card with UV adhesive coating includes a waterproof film layer, a UV adhesive layer and a cardboard layer. The waterproof film layer is symmetrically arranged on both sides of the cardboard layer. A UV adhesive layer is provided between the waterproof film layer and the cardboard layer. One side of the cardboard layer is provided with chemical indicator ink and standard color blocks, and the other side is provided with scale lines.
[0006] Preferably, the thickness of the waterproof membrane layer is 10-50 μm.
[0007] Preferably, the thickness of the UV adhesive layer is 5-15 μm.
[0008] Preferably, the waterproof membrane layer, UV adhesive layer, and cardboard layer have the same length and width.
[0009] Preferably, the cardboard layer also includes a text area and a recording area. The text area is located on the upper and left sides of the cardboard layer, and the recording area is located on the lower side of the cardboard layer. Chemical indicator ink and standard color blocks are located between the text area and the recording area.
[0010] Preferably, there are two scale lines, located on the upper and lower sides of the cardboard layer, and in opposite directions.
[0011] Compared with existing technologies, the beneficial effects of this technical solution are as follows: UV adhesive coating utilizes an ultraviolet-cured adhesive coating process, which has advantages such as fast curing speed, good coating effect, and no heat shrinkage. This utility model improves the coating effect by setting a UV adhesive layer between the cardboard layer and the waterproof membrane layer, effectively preventing condensation from interfering with the indicator card's reagent during sterilization, ensuring the stability and accuracy of the indicator card's monitoring. A chemical indicator ink is set on one side of the cardboard layer to indicate whether sterilization is qualified, and precise graduation lines are set on the other side, which can be used as a sterile ruler in the operating room, facilitating medical staff to quickly measure object dimensions. Furthermore, because of the UV adhesive layer, the graduation lines will not shrink, resulting in more accurate measurement results. Attached Figure Description
[0012] Figure 1 This is a front view of a scale-type chemical indicator card with UV adhesive coating according to this utility model.
[0013] Figure 2 This is a rear view of the present invention.
[0014] Figure 3 This is a schematic diagram of the structure of this utility model.
[0015] The components include: 1. Text area on the page; 2. Standard color blocks; 3. Chemical indicator ink; 4. Recording area; 5. Scale lines; 6. Waterproof membrane layer; 7. UV adhesive layer; and 8. Cardboard layer. Detailed Implementation
[0016] Figures 1-3 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-3 The present invention will be further described below.
[0017] Reference Figures 1-2 The UV-coated ruler-type chemical indicator card has chemical indicator ink 3 and standard color blocks 2 printed on the front to indicate whether sterilization is qualified. Its performance meets the standard for chemical indicators in ISO 11140-1. The reverse side has scale lines 5 printed on it, which can be used as a sterile ruler in the operating room to facilitate medical staff to quickly measure the size of objects, such as tumor size and steel nail length.
[0018] The front of the indicator card also has a text area 1 and a recording area 4. The text area 1 of this utility model is located on the upper and left sides of the front of the indicator card, and the recording area 4 is located on the lower side of the indicator card opposite to the upper text area 1. The chemical indicator ink 3 and the standard color block 2 are located between the upper text area 1 and the recording area 4. The chemical indicator ink 3 is located on the left side of the middle of the indicator card, and the standard color block 2 is located on the right side of the middle of the indicator card. An indicator arrow is provided between the chemical indicator ink 3 and the standard color block 2.
[0019] Recording area 4 records information such as the operator, sterilization date, sterilizer number, sterilization batch, measured item and measured value, which facilitates medical staff to trace the source.
[0020] There are two scale lines 5 printed on the reverse side, which are set on the top and bottom sides of the indicator card respectively. The length range of each indicator card is 0~9cm. The two scale lines 5 indicate in opposite directions and are symmetrical about the center point of the indicator card, so that medical staff can measure in both the top and bottom directions when using the indicator card.
[0021] Reference Figure 3 The chemical indicator card of this utility model includes a waterproof membrane layer 6, a UV adhesive layer 7, and a cardboard layer 8. The waterproof membrane layer 6 is symmetrically arranged on both sides of the cardboard layer 8. The UV adhesive layer 7 is respectively arranged between the waterproof membrane layer 6 and the cardboard layer 8. The UV adhesive is attached to the waterproof membrane and is instantly coated on the cardboard layer 8 by irradiation with a UV lamp.
[0022] The waterproof membrane layer 6, UV adhesive layer 7, and cardboard layer 8 have the same length and width. The thickness of the waterproof membrane layer 6 is 10-50um, and the thickness of the UV adhesive layer 7 is 5-15um. If too much UV adhesive is applied, there is a risk of adhesive overflow at the edges during the cutting process of the indicator strip; if too little is applied, there is a risk of film peeling.
[0023] In existing technologies, waterproof membrane coating is typically achieved through heating, which can lead to membrane shrinkage and bending due to heat. To avoid this drawback, the scale-type chemical indicator card of this invention employs a UV adhesive "cold coating" process, instantly completing the coating under UV light irradiation. Due to its inherent properties, UV adhesive, under UV light, triggers the photoinitiator in the adhesive to generate free radicals or cations, thereby initiating a polymerization reaction between monomers and prepolymers. This causes the adhesive to rapidly cure and develop adhesion, achieving "cold coating." This avoids the problems of membrane shrinkage and bending that occur with heated coating.
[0024] The scale lines 5 set on the reverse side of the cardboard layer 8 serve as a sterile ruler in the operating room. The improved UV adhesive coating process makes the chemical indicator card accurate. The measured values can be filled into the recording area 4 on the front of the card, which is convenient to use, improves the utilization rate of the tool, and reduces the time wasted in the operation due to searching for the sterile ruler.
[0025] The text area 1, the recording area 4, the chemical indicator ink 3, and the standard color block 2 are set on the front of the cardstock layer 8, and the scale line 5 is set on the back of the cardstock layer 8.
[0026] Working process: The chemical indicator card is placed inside a high-risk material package and put into the sterilizer along with the sterilization package. As the sterilization process progresses, the chemical indicator ink 3 on the indicator card gradually changes color due to key process variables. Finally, the sterilization effect of the sterilization package is judged by comparing it with the standard color patch 2. Sterilization packages that pass the monitoring can be used normally. The chemical indicator card can be used as a sterile ruler in the operating room, facilitating medical staff to quickly measure the size of objects.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.
Claims
1. A UV-coated scale-type chemical indicator card, characterized in that: It includes a waterproof membrane layer (6), a UV adhesive layer (7) and a cardboard layer (8). The waterproof membrane layer (6) is symmetrically arranged on both sides of the cardboard layer (8). The UV adhesive layer (7) is provided between the waterproof membrane layer (6) and the cardboard layer (8). One side of the cardboard layer (8) is provided with chemical indicator ink (3) and standard color blocks (2), and the other side is provided with scale lines (5).
2. The UV-coated scale-type chemical indicator card according to claim 1, characterized in that: The thickness of the waterproof membrane layer (6) is 10-50um.
3. A UV-coated scale-type chemical indicator card according to claim 1, characterized in that: The thickness of the UV adhesive layer (7) is 5-15 μm.
4. A UV-coated scale-type chemical indicator card according to claim 1, characterized in that: The waterproof membrane layer (6), UV adhesive layer (7), and cardboard layer (8) have the same length and width.
5. A UV-coated scale-type chemical indicator card according to claim 1, characterized in that: The cardboard layer (8) is also provided with a text area (1) and a recording area (4). The text area (1) is located on the upper and left sides of the cardboard layer (8), and the recording area (4) is located on the lower side of the cardboard layer (8). The chemical indicator ink (3) and the standard color block (2) are located between the text area (1) and the recording area (4).
6. A UV-coated scale-type chemical indicator card according to claim 1, characterized in that: Two scale lines (5) are provided, located on the upper and lower sides of the cardboard layer (8), and in opposite directions.