Anti-fuzzing composite dust-free paper
By setting a constraint embossing and an interleaved outer protective layer structure on the surface of the cleanroom paper substrate layer, the problems of fuzzing and decreased water absorption performance during the use of cleanroom paper are solved, and the fiber stability and absorption performance are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FEIRUN WEICAI TECHNOLOGY (FOSHAN) CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing cleanroom paper is prone to fuzzing during use, causing fiber shedding and posing a safety hazard. Furthermore, the embossed layer reduces its absorbency, making it difficult to balance fuzz prevention and absorbency.
The substrate layer adopts an alternating distribution structure of surface constraint embossing and outer protective layer. The constraint embossing forms a mesh structure, and the protective lines of the outer protective layer supplement the constraint fibers. Combined with the protective coating and adhesive edge fixation, the fiber stability is enhanced.
It effectively prevents fiber pilling, maintains fiber stability, improves absorption performance, avoids safety hazards, and has a good anti-pilling effect.
Smart Images
Figure CN224259115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust-free paper technology, specifically to an anti-linting composite dust-free paper. Background Technology
[0002] Cleanroom wipes, as a cleaning tool, are widely used in electronics, optics, and medical fields due to their superior cleaning performance. For example, in the electronics industry, cleanroom wipes are used to wipe semiconductor devices, integrated circuits, and printed circuit boards to ensure the quality and performance of electronic products. In the optics industry, cleanroom wipes are used to clean lenses and optical instruments to ensure the accuracy and clarity of optical equipment. In the medical field, cleanroom wipes are used to clean medical equipment and surgical instruments to maintain the hygiene and safety of the medical environment. However, during the cleaning process, cleanroom wipes need to rub frequently against the object being wiped. This friction can directly cause the internal fibers of the cleanroom wipe to loosen, or static electricity and other factors can cause the internal fibers to loosen, resulting in fuzzing and easy shedding of fibers. These shed fibers can be easily inhaled into the lungs or fall onto the surface of circuits or inside medical equipment, posing certain safety hazards.
[0003] Based on the above, Chinese Patent Publication No. CN221501591U discloses an anti-linting composite dust-free paper, including a main layer, a first transverse fiber layer at the top of the main layer, a first softening layer at the top of the first transverse fiber layer, a first embossing layer at the top of the first softening layer, a first surface coating at the top of the first embossing layer, a second transverse fiber layer at the bottom of the main layer, a second softening layer at the bottom of the second transverse fiber layer, a second embossing layer at the bottom of the second softening layer, and a second surface coating at the bottom of the second embossing layer.
[0004] The aforementioned patent document discloses a composite cleanroom paper that prevents linting through surface embossing. Both sides of the cleanroom paper are provided with embossed layers. The embossed layers can bind the fibers in the cleanroom paper together and prevent them from easily falling apart, thereby avoiding linting caused by friction between the cleanroom paper and the object being wiped. However, the embossing operation will reduce the gaps between the fibers in the cleanroom paper. In order to improve the anti-linting performance of the cleanroom paper, it is usually necessary to set a relatively dense embossing on the surface of the cleanroom paper, but this will significantly reduce the gaps between the fibers inside the cleanroom paper, resulting in a decrease in the water absorption performance of the cleanroom paper. The aforementioned cleanroom paper has the defect of being unable to balance anti-linting performance and water absorption performance. Therefore, there is still room for improvement in this cleanroom paper. Utility Model Content
[0005] To address the technical deficiencies in the background technology, this utility model proposes an anti-linting composite dust-free paper, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:
[0006] A lint-resistant composite dust-free paper includes a substrate layer and an outer protective layer. The upper and lower surfaces of the substrate layer are provided with constraint embossing. The constraint embossing is composed of several embossing grooves that are recessed downward on the surface of the substrate layer and are distributed in a crisscross pattern. The several embossing grooves together form a mesh structure of constraint embossing.
[0007] The outer protective layer has two layers, located on the upper and lower surfaces of the substrate layer respectively. The outer protective layer is composed of several interlaced protective lines forming a mesh structure. The projections of the protective lines on the surface of the substrate layer are interlaced with the embossed grooves.
[0008] As a further technical solution of this utility model, the substrate layer is composed of a first dust-free paper layer, a water-absorbing layer and a second dust-free paper layer from top to bottom, and the first dust-free paper layer, the water-absorbing layer and the second dust-free paper layer are bonded and fixed in sequence.
[0009] As a further technical solution of this utility model, the upper and lower surfaces of the substrate layer are covered with a protective coating, the protective coating completely covers the surface of the substrate layer, and the protective coating is located between the substrate layer and the outer protective layer.
[0010] As a further technical solution of this utility model, the two outer protective layers are bonded and fixed to each other at the edge of the substrate layer to form an adhesive edge, which enables the two outer protective layers to jointly wrap the substrate layer inside.
[0011] As a further technical solution of this utility model, the protective line is spun from a number of polymer fiber filaments and conductive fiber filaments.
[0012] As a further technical solution of this utility model, the thickness of the substrate layer is 1~5mm, and the depth of the embossing groove recessed downward on the surface of the substrate layer is 0.1~0.2mm;
[0013] The thickness of the outer protective layer is 0.1~0.5mm.
[0014] The beneficial effects of this utility model are as follows:
[0015] This utility model discloses a composite cleanroom paper that prevents fuzzing during use. In this composite cleanroom paper, the constraint embossing on the surface of the substrate layer serves as the first constraint structure for the fibers. The constraint embossing increases the tightness of fiber cohesion within the substrate layer. The outer protective layer, which has a mesh structure, serves as the second constraint structure for the fibers within the substrate layer. The protective lines of the outer protective layer are interlaced on the surface of the substrate layer to prevent fibers from protruding from the surface of the substrate layer. The constraint embossing and the outer protective layer, through their interlaced distribution, form a complementary constraint effect, which can constrain most of the fibers within the substrate layer. This allows the composite cleanroom paper to maintain stable absorption performance while also having a good anti-fuzzing effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a first embodiment of an anti-linting composite dust-free paper.
[0017] Figure 2 This is a disassembly diagram of a first embodiment of an anti-linting composite dust-free paper.
[0018] Figure 3 This is a schematic diagram of the structure of a second embodiment of an anti-linting composite dust-free paper.
[0019] Figure 4 This is a disassembly diagram of a third embodiment of an anti-linting composite dust-free paper.
[0020] Wherein: 1-substrate layer, 11-constraint embossing, 12-first cleanroom paper layer, 13-absorbent layer, 14-second cleanroom paper layer, 2-outer protective layer, 21-protective line, 22-adhesive edge. Detailed Implementation
[0021] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.
[0022] A lint-resistant composite dust-free paper includes a substrate layer 1 and an outer protective layer 2. The upper and lower surfaces of the substrate layer 1 are provided with constraint embossing 11. The constraint embossing 11 is composed of several embossing grooves that are recessed downward on the surface of the substrate layer 1 and are distributed in a crisscross pattern. The several embossing grooves together form a mesh structure of constraint embossing 11.
[0023] The outer protective layer 2 has two layers and is located on the upper and lower surfaces of the substrate layer 1, respectively. The outer protective layer 2 is composed of several interlaced protective lines 21 that form a mesh structure. The projections of the protective lines 21 on the surface of the substrate layer 1 are interlaced with the embossed grooves.
[0024] This utility model discloses a composite cleanroom paper to prevent fuzzing during use. In this composite cleanroom paper, the thickness of the substrate layer 1 is 1-5 mm, and the depth of the embossing grooves recessed downwards on the surface of the substrate layer 1 is 0.1-0.2 mm; the thickness of the outer protective layer 2 is 0.1-0.5 mm. The substrate layer 1 uses commonly available cleanroom paper, and the constraint embossing on the surface of the substrate layer 1 can be processed using common cleanroom paper embossing techniques. After embossing, downwardly recessed constraint embossing 11 is formed on the surface of the substrate layer 1. The fibers constituting the substrate layer 1 are constrained by the embossing... The fibers near texture 11 will be more tightly bound together during the embossing process. By increasing the density of the fibers inside the substrate layer 1, the fuzzing phenomenon that occurs when the fibers inside the substrate layer 1 are hooked by external objects during the use of the composite cleanroom paper can be avoided. Since the hooked fibers are more likely to fall off from the substrate layer 1, and the fallen fibers are easily inhaled into the lungs or fall onto the surface of circuits, inside medical equipment, etc., there are certain safety hazards. Preventing the fuzzing phenomenon of the composite cleanroom paper can avoid these hazards and improve the safety of the cleanroom paper during use.
[0025] As a first preferred embodiment of this utility model, refer to Figure 1 , Figure 2 To improve the effectiveness of cleanroom paper in preventing lint formation, it is usually necessary to set relatively dense and closely spaced constraint embossing 11, such as setting the spacing of constraint embossing 11 to 1 mm or less, so that the constraint embossing 11 passes through all the fibers that make up the substrate layer 1. This ensures that all the fibers in the substrate layer 1 are constrained by the constraint embossing 11, thereby improving the effectiveness of cleanroom paper in preventing lint formation. However, since constraint embossing 11 will reduce the gap between the fibers inside the substrate layer 1 and reduce the absorption performance of the substrate layer 1, and cleanroom paper is usually used in hygiene products such as diapers and sanitary napkins or as a cleaning consumable, when cleanroom paper is used in hygiene products, it will also affect the absorption performance of hygiene products. When cleanroom paper is used as a cleaning consumable and the area to be cleaned contains liquid, the insufficient absorption of liquid by the cleanroom paper will also affect the cleaning effect. Therefore, it can be seen that overly dense constraint embossing 11 may actually have a negative impact on cleanroom paper.
[0026] As a second preferred embodiment of this utility model, refer to Figure 3This utility model increases the spacing of the constraint embossing 11 by setting an outer protective layer 2 on the surface of the substrate layer 1. Specifically, the constraint embossing 11 is distributed crisscrossingly on the surface of the substrate layer 1, forming several rectangular grids on the surface of the substrate layer 1 that are not covered by the constraint embossing 11. The shape of the rectangular grid is preferably square, while the grid shape of the outer protective layer 2 is rhomboid or square. Each protective line 21 in the outer protective layer 2 extends along the diagonal of the rectangular grid so that each rectangular grid is covered by two protective lines 21, or the density of the protective lines 21 in the outer protective layer 2 is increased so that each rectangular grid is covered by four or more and an even number of protective lines 21. In this case, the protective lines 21 do not need to extend along the diagonal of the rectangular grid, as long as the parallel protective lines 21 in the same rectangular grid divide the diagonal they pass through into three or more equal parts.
[0027] After the outer protective layer 2 of this utility model adopts the above structure, it should be noted that the protective lines 21 in the outer protective layer 2 mainly extend along the positions on the surface of the substrate layer 1 where the constraint embossing 11 does not pass. The protective lines 21 can play a supplementary constraint role on the fibers in these positions. The effect of the protective lines 21 is similar to that of the constraint embossing 11. It can also prevent the fibers in the substrate layer 1 from being hooked by external objects and causing fuzzing. So even if the spacing of the constraint embossing 11 is increased, the supplementary constraint role of the outer protective layer 2 can still constrain most of the fibers in the substrate layer 1. The increased spacing of the constraint embossing 11 can ensure the absorption performance of the composite cleanroom paper. According to the above structure, the spacing of the constraint embossing 11 can be increased to 3mm or more, while the spacing of the protective lines 21 in the outer protective layer 2 is maintained at about 2mm and is adaptively adjusted according to the spacing of the constraint embossing 11. This can ensure the absorption performance of the composite cleanroom paper while having a good anti-fuzzing effect.
[0028] It should be further explained that when the outer protective layer 2 and the substrate layer 1 are composite and fixed, adhesive is applied in a dotted manner at the intersection of the protective lines 21 of the outer protective layer 2 to fix the outer protective layer 2 and the substrate layer 1, so that the outer protective layer 2 is tightly attached to the surface of the substrate layer 1 and the fibers in the substrate layer 1 are constrained and fixed.
[0029] As a third preferred embodiment of this utility model, refer to Figure 4The substrate layer 1 is composed of a first cleanroom paper layer 12, an absorbent layer 13, and a second cleanroom paper layer 14 from top to bottom. The first cleanroom paper layer 12, the absorbent layer 13, and the second cleanroom paper layer 14 are bonded and fixed in sequence. After the substrate layer 1 adopts the above structure, the constraint embossing 11 is set on the upper surface of the first cleanroom paper layer 12 and the lower surface of the second cleanroom paper layer 14. The absorbent layer 13 is preferably made of a material with strong water absorption, such as a sponge. The first cleanroom paper layer 12 and the second cleanroom paper layer 14 are both made of commonly used cleanroom paper. Based on the above structure, the substrate layer 1 is composed of three layers of materials. The absorbent layer 13 can improve the absorption performance of the substrate layer 1. When cleaning and wiping objects with liquid on their surface using composite cleanroom paper, the liquid on the object surface can be quickly absorbed into the absorbent layer 13, so that there is no flowing liquid on the object surface. This can prevent the dirt on the object surface from spreading with the liquid flow during the cleaning and wiping process, thereby improving the cleanliness of the object surface after cleaning and wiping.
[0030] As one of the preferred embodiments of this utility model, both the upper and lower surfaces of the substrate layer 1 are covered with a protective coating. The protective coating completely covers the surface of the substrate layer 1 and is located between the substrate layer 1 and the outer protective layer 2. The surface of the substrate layer 1 of this utility model can be coated with materials such as silicone oil to form a protective coating. The protective coating formed by silicone oil can improve the smoothness and anti-friction performance of the surface of the substrate layer 1, and prevent the internal fibers from loosening due to friction with external objects during the use of the composite cleanroom paper, thereby giving the composite cleanroom paper a better anti-linting effect.
[0031] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 2 Two outer protective layers 2 are bonded and fixed to each other at the edge of the substrate layer 1 to form an adhesive edge 22. The adhesive edge 22 allows the two outer protective layers 2 to jointly wrap the substrate layer 1 inside. Based on the above structure, after the two outer protective layers 2 are bonded and fixed to the substrate layer 1, the edges of the two outer protective layers 2 are bonded and fixed by means of hot pressing, so that the two outer protective layers 2 jointly wrap the substrate layer 1 inside. The structure of the two outer protective layers 2 being fixedly connected by the edges can prevent the substrate layer 1 from separating from the outer protective layer 2, thereby improving the structural stability of the composite cleanroom paper.
[0032] As one of the preferred embodiments of this utility model, the protective line 21 is spun from a plurality of polymer fiber filaments and conductive fiber filaments. The polymer fiber filaments in the protective line 21 are selected from one or more of polyester fiber, polypropylene fiber, and elastic polyurethane fiber. The conductive fiber filaments can be polymer fiber filaments with added conductive particles to give them conductive properties. The protective line 21 is spun by twisting a plurality of polymer fiber filaments and conductive fiber filaments together. The protective line 21 has high strength and can restrain the fibers in the substrate layer 1. The conductive properties of the protective line 21 can prevent static electricity accumulation during the cleaning and wiping process of the composite cleanroom paper, so that the composite cleanroom paper can be used to clean products such as circuit boards that need to avoid static electricity accumulation.
[0033] In summary, this utility model discloses a composite cleanroom paper that prevents fuzzing during use. In this composite cleanroom paper, the constraint embossing 11 on the surface of the substrate layer 1 serves as the first constraint structure for the fibers. The constraint embossing 11 increases the tightness of fiber cohesion within the substrate layer 1. The outer protective layer 2, which has a mesh structure, serves as the second constraint structure for the fibers in the substrate layer 1. The protective lines 21 of the outer protective layer 2 are staggered on the surface of the substrate layer 1 to prevent fibers from protruding from the surface of the substrate layer 1. The constraint embossing 11 and the outer protective layer 2 form a complementary constraint effect through staggered distribution, which can constrain most of the fibers within the substrate layer 1, so that the composite cleanroom paper maintains stable absorption performance and has a good anti-fuzzing effect.
[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A lint-resistant composite dust-free paper, comprising a substrate layer (1) and an outer protective layer (2), characterized in that, The upper and lower surfaces of the substrate layer (1) are provided with constraint embossing (11). The constraint embossing (11) is composed of several embossing grooves that are recessed downward on the surface of the substrate layer (1) and are distributed in a crisscross pattern. The several embossing grooves together form a mesh structure constraint embossing (11). The outer protective layer (2) has two layers and is located on the upper and lower surfaces of the substrate layer (1) respectively. The outer protective layer (2) is composed of several interlaced protective lines (21) forming a mesh structure. The projection of the protective lines (21) on the surface of the substrate layer (1) and the embossed grooves are interlaced.
2. The anti-linting composite dust-free paper according to claim 1, characterized in that, The substrate layer (1) is composed of a first dust-free paper layer (12), a water-absorbing layer (13), and a second dust-free paper layer (14) from top to bottom, and the first dust-free paper layer (12), the water-absorbing layer (13), and the second dust-free paper layer (14) are bonded and fixed in sequence.
3. The anti-linting composite dust-free paper according to claim 1, characterized in that, The upper and lower surfaces of the substrate layer (1) are covered with a protective coating, which completely covers the surface of the substrate layer (1) and is located between the substrate layer (1) and the outer protective layer (2).
4. The anti-linting composite dust-free paper according to claim 1, characterized in that, The two outer protective layers (2) are bonded and fixed to each other at the edge of the substrate layer (1) to form an adhesive edge (22), which enables the two outer protective layers (2) to jointly wrap the substrate layer (1) inside.
5. The anti-linting composite dust-free paper according to claim 1, characterized in that, The protective line (21) is spun from several polymer fiber filaments and conductive fiber filaments.
6. The anti-linting composite dust-free paper according to claim 1, characterized in that, The thickness of the substrate layer (1) is 1~5mm, and the depth of the embossing groove recessed downward on the surface of the substrate layer (1) is 0.1~0.2mm; The thickness of the outer protective layer (2) is 0.1~0.5mm.