WO2020147274A1 - Preparation method for dry and comfortable absorbent article - Google Patents
Preparation method for dry and comfortable absorbent article Download PDFInfo
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- WO2020147274A1 WO2020147274A1 PCT/CN2019/095350 CN2019095350W WO2020147274A1 WO 2020147274 A1 WO2020147274 A1 WO 2020147274A1 CN 2019095350 W CN2019095350 W CN 2019095350W WO 2020147274 A1 WO2020147274 A1 WO 2020147274A1
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- surface layer
- hydrophilic surface
- layer material
- woven fabric
- roller
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
Definitions
- the invention relates to the field of sanitary products, in particular to a method for preparing dry absorbent articles.
- Existing disposable absorbent articles generally include a liquid-permeable surface layer, an absorbent body, and a liquid-impermeable bottom layer that are sequentially stacked.
- the absorbent body is usually composed of dust-free paper or toilet paper or non-woven fabric wrapped with an absorbent core.
- the body is usually made by mixing fluff pulp and water-absorbing resin.
- the structure of the absorber is improved in the prior art. For example, the non-woven fabric is first processed to have an array of accommodating grooves, and then the accommodating grooves are arranged in a point-to-point manner.
- water-absorbent resin is added in a flat way, hollow protrusions are formed on the fabric through 3D embossing equipment, and then water-absorbent resin is filled in the hollow protrusions, but because the fabric is transported throughout the production line There is tension, so the method of forming hollow protrusions by 3D embossing equipment and then adding water-absorbent resin will find that the 3D protrusions of the fabric return to a state close to the plane, so that in the subsequent hot pressing process, The hollow raised edge cannot be reliably welded to another layer of fabric, so the water-absorbent resin is in an unstable state between the two layers of fabric, and the product has caused abnormal deviation or aggregation of the water-absorbent resin due to packaging and transportation. This is contrary to the original intention of the invention.
- the present invention provides a method for preparing a dry absorbent article, which solves the defect that the absorbent resin in the prior art is prone to offset or aggregate due to the defects of the preparation method.
- a preparation method of dry absorbent articles including the following preparation steps:
- liquid-permeable surface layer 1) preparing a liquid-permeable surface layer, the liquid-permeable surface layer having a longitudinal direction extending along its length direction and a transverse direction perpendicular to the longitudinal direction;
- the preparation of the absorbent core includes the following steps:
- the hydrophilic surface layer material of 20 ⁇ 35g/m 2 is continuously conveyed into a pair of pressure roller assemblies, the pressure roller assembly includes a concave roller and a convex roller, the circumference of the concave roller A plurality of forming grooves are uniformly distributed on the outer surface, and the sectional area of each forming groove located on the radially outer side of the concave roller is between 15 mm 2 and 100 mm 2 , and along the radially outward direction along the axis of the concave roller, each The cross-sectional area of the forming groove gradually increases, the distance between each adjacent forming groove is between 1 to 5 mm, the radially outer side of the convex roller is provided with a forming column corresponding to the size of each forming groove, the concave roller and the The convex rollers are engaged and connected with transmission, and at least one of the concave rollers or the convex rollers is heated to a temperature of 60-115°C by a heating device, thereby forming
- the resin adding device includes a container with a certain volume.
- the bottom of the container is provided with a rectangular discharge port.
- the discharge port is equipped with a control board for controlling the opening, closing and opening of the discharge port, along the conveying direction of the hydrophilic surface layer material.
- a limiting plate is provided on the upper surface of the accommodating tank downstream of the discharging port, and the limiting plate is used to remove excess water-absorbing resin;
- hydrophilic surface layer material and non-woven fabric material after the heat pressing process are sealed by an ultrasonic composite device, so that the hydrophilic surface layer material and the non-woven fabric material are tightly bonded along the lateral sides;
- a further improvement is: after the step 4 or step 5 or step 6, the hydrophilic surface layer material and the non-woven fabric material are welded between the two by heat welding or ultrasonic welding along the transportation direction of the hydrophilic surface layer material. Form 2-12 welding points between them to prevent the core from cracking and clumping.
- a further improvement is that there are 4 welding points.
- the beneficial effect of the present invention is: the preparation method of the dry absorbent article of the present invention is realized by online compounding.
- a pair of pressure roller assemblies are first used on the hydrophilic surface layer.
- An array of containing tanks is formed on the material, and the cross-sectional area of the containing tank along the opening direction from the bottom gradually increases.
- the water-absorbing resin is added through a container with a certain volume.
- the bottom of the container is provided with a discharge port, and the discharge port is provided There is a control board, through which the amount of water-absorbent resin is controlled, and a limited amount plate is set on the upper surface of the containing tank downstream of the discharge port.
- the setting of the limited plate can be used to remove excess water-absorbent resin to make water-absorbent resin It is only filled in the accommodating groove, and there is no water-absorbent resin around the accommodating groove, which is conducive to the thermal bonding of the hydrophilic surface layer material and the non-woven fabric on it.
- the resin itself is not sticky, and the hydrophilic surface layer material and the non-woven fabric cannot be bonded, which will cause the water-absorbent resin to shift and aggregate;
- the hydrophilic surface layer material and non-woven fabric material after the thermal compression process are sealed by an ultrasonic composite device, so that the hydrophilic surface layer material and the non-woven fabric material are tightly bonded along the lateral sides;
- Figure 1 is a schematic diagram of the structure of the absorbent core in the first embodiment of the present invention.
- Figure 2 is a cross-sectional view of the absorbent core in the first embodiment of the present invention.
- FIG. 3 is a schematic diagram of the structure of the concave roller in the first embodiment of the present invention.
- FIG. 4 is a schematic diagram of the structure of the convex roller in the first embodiment of the present invention.
- FIG. 5 is a schematic diagram of the structure of a water-absorbent resin adding device according to an embodiment of the present invention.
- Fig. 6 is a schematic diagram of the structure of the absorbent core in the second embodiment of the present invention.
- a method for preparing dry diapers includes the following preparation steps:
- the liquid-permeable surface layer has a longitudinal direction extending along its length and a transverse direction perpendicular to the longitudinal direction.
- the liquid-permeable surface layer is made of a hydrophilic non-woven fabric and arranged on a hydrophilic non-woven fabric. Composition of hydrophobic non-woven fabric on both sides of woven fabric;
- the pressure roller assembly includes a concave roller 1 and a convex roller 2.
- the concave roller A plurality of forming grooves 3 are uniformly distributed on the outer circumferential surface of 1 and the cross-sectional area of each forming groove 3 located on the radially outer side of the concave roller 1 is between 15mm 2 and 100mm 2 , and is radially along the axis of the concave roller In the direction in which the outside extends, the cross-sectional area of each forming groove gradually increases, the distance between each adjacent forming groove is 2mm, and the radial outside of the convex roller 2 is provided with a forming column 4 corresponding to the size of each forming groove, so
- the concave roller 1 and the convex roller 2 are arranged in meshing transmission connection, and the concave roller 1 is heated to 60° C. by a heating device, thereby forming an
- the water-absorbent resin adding device includes a container 51 with a certain volume.
- the bottom of the container 51 is provided with a rectangular discharge port 52.
- the discharge port 52 is provided with a control board 53 for controlling the opening, closing and opening of the discharge port 52.
- a limit plate (not shown in the figure) is provided on the upper surface of the accommodating groove downstream of the discharge opening 52, and the limit plate is used to remove excess water-absorbing resin;
- hydrophilic non-woven fabric 7 and the non-woven fabric material 8 after the thermal compression treatment are sealed by an ultrasonic composite device, so that the hydrophilic non-woven fabric 7 and the non-woven fabric material 8 are tightly bonded along the lateral sides;
- thermocompression treatment by 180 degrees so that the hydrophilic non-woven fabric 7 is on the top and the non-woven fabric material 8 is on the bottom.
- 8 can be a hydrophilic non-woven fabric or a water-repellent non-woven fabric.
- a liquid-impermeable bottom layer which is composed of a breathable bottom film and a non-woven fabric arranged at the bottom of the breathable bottom film;
- a method for preparing a dry sanitary napkin the preparation step of the absorbent core is further processed after step 6): the hydrophilic surface layer is transported along the transport direction of the hydrophilic surface layer material The material and the non-woven fabric are thermally welded to form 4 welding points 9 between them.
- this embodiment lacks step 5), and adds the steps of preparing wings and release paper and compounding with other components.
- the wings are arranged on both lateral sides of the absorbent core.
- the release paper is set on the bottom of the wings and the liquid-impermeable bottom layer by glue bonding.
- the basis weight of the hydrophilic surface layer material is 20-35g/m 2
- the cross-sectional area of each of the forming grooves located on the radially outer side of the concave roller is between 15mm 2 and 100mm 2
- each of the phases The distance between adjacent molding grooves is between 1 and 5mm
- one of the concave roller or convex roller is heated to 60 ⁇ 115°C by a heating device
- the depth of the containing groove is between 3 and 6mm.
- the addition amount is 150-300g/m 2
- the temperature of the pressing roll is heated to 60-110°C
- the number of welding points is 2-12
- the objective of the present invention can be achieved within the above parameter range.
- dry absorbent article of the present invention may be disposable absorbent articles such as diapers and sanitary napkins.
Abstract
Disclosed is a preparation method for a dry and comfortable absorbent article, the method comprising the following preparation steps: 1) preparing a liquid-permeable surface layer; 2) preparing an absorbent core: (1) inputting a hydrophilic surface layer material (7) into a pair of press roller assemblies comprising a concave roller (1) and a convex roller (2), and forming array-type accommodating grooves in the hydrophilic surface layer material (7); (2) adding a water-absorbent resin (6) to each of the accommodating grooves; (3) covering the accommodating grooves of the hydrophilic surface layer material (7) with another non-woven fabric material (8); (4) performing a thermal press-bonding treatment on the hydrophilic surface layer material (7) and the non-woven fabric material (8) thereon through a pair of press-bonding rollers; (5) performing, by means of an ultrasonic combination device, a sealing treatment on the hydrophilic surface layer material (7) and the non-woven fabric material (8) subjected to the thermal press-bonding treatment; (6) flipping the core 180 degrees after the thermal press-bonding treatment in step (5) has been performed; and (7) cutting the flipped core according to a set length; 3) preparing a liquid-tight bottom layer; and 4) combining the liquid-permeable surface layer, the absorbent core and the liquid-tight bottom layer prepared in the above steps into a whole. The preparation method overcomes the defect in the prior art that a water-absorbent resin is prone to shifting or aggregation.
Description
本发明涉及卫生用品领域，尤其涉及一种干爽吸收物品的制备方法。The invention relates to the field of sanitary products, in particular to a method for preparing dry absorbent articles.
现有的一次性吸收物品，其一般包括依次叠层设置的透液性面层、吸收体及不透液性底层，吸收体通常由无尘纸或卫生纸或无纺布包裹吸收芯组成，吸收体通常由绒毛浆与吸水性树脂混合而成。为了增加吸收体的透气性，现有技术中有对吸收体的结构进行改进，例如，先对无纺布进行加工，使其具有阵列式的容置槽，再采用点对点的方式对容置槽添加吸水性树脂，这种生产方法在材料的线速度低于10米/每分钟时是可行的，当线速度提高到大于20米/分钟的时候，吸水性树脂相对于面料以切向的方向进入容置槽，鉴于面料的表面是凹凸不平的纤维，且吸水性树脂的比重较轻，这样在添加地过程中吸水性树指反弹及溅射的现象非常严重，因此试图将吸水性树脂释放在设定的容置槽难以实现。另外还有采用平铺的方式添加吸水性树脂，通过3D压花设备在面料上形成空心突凸起，然后在空心凸起内灌装吸水性树脂，但因为面料在生产线的整个输送过程中是存在张力的，因此通过3D压花设备形成空心凸起然后添加吸水性树脂的方法在实践中会发现面料的3D凸起又回复到接近于平面的状态，从而在后续的热压合过程中，空心凸起的边缘无法与另一层面料可靠焊接，从而吸水性树脂在两层面料之间处于不稳定状态，从而产品因为包装、运输的原因已经产生了吸水性树脂非正常偏移或者聚集，这与发明的初衷相背离。Existing disposable absorbent articles generally include a liquid-permeable surface layer, an absorbent body, and a liquid-impermeable bottom layer that are sequentially stacked. The absorbent body is usually composed of dust-free paper or toilet paper or non-woven fabric wrapped with an absorbent core. The body is usually made by mixing fluff pulp and water-absorbing resin. In order to increase the breathability of the absorber, the structure of the absorber is improved in the prior art. For example, the non-woven fabric is first processed to have an array of accommodating grooves, and then the accommodating grooves are arranged in a point-to-point manner. Adding water-absorbent resin, this production method is feasible when the line speed of the material is less than 10 meters/minute, when the line speed is increased to more than 20 meters/minute, the water-absorbent resin is tangential to the fabric Into the accommodating tank, given that the surface of the fabric is uneven fibers and the specific gravity of the water-absorbent resin is relatively light, the rebound and spattering of the water-absorbent resin during the process of adding ground is very serious, so I tried to release the water-absorbent resin It is difficult to achieve in the set storage tank. In addition, water-absorbent resin is added in a flat way, hollow protrusions are formed on the fabric through 3D embossing equipment, and then water-absorbent resin is filled in the hollow protrusions, but because the fabric is transported throughout the production line There is tension, so the method of forming hollow protrusions by 3D embossing equipment and then adding water-absorbent resin will find that the 3D protrusions of the fabric return to a state close to the plane, so that in the subsequent hot pressing process, The hollow raised edge cannot be reliably welded to another layer of fabric, so the water-absorbent resin is in an unstable state between the two layers of fabric, and the product has caused abnormal deviation or aggregation of the water-absorbent resin due to packaging and transportation. This is contrary to the original intention of the invention.
发明内容Summary of the invention
因此，针对以上内容，本发明提供一种干爽吸收物品的制备方法，解决现有技术的吸收物品由于制备方法的缺陷导致吸水树脂容易发生偏移或者聚集的缺陷。Therefore, in view of the above, the present invention provides a method for preparing a dry absorbent article, which solves the defect that the absorbent resin in the prior art is prone to offset or aggregate due to the defects of the preparation method.
为达到上述目的，本发明是通过以下技术方案实现的：一种干爽吸收物品 的制备方法，包括以下制备步骤：In order to achieve the above-mentioned object, the present invention is achieved through the following technical solutions: a preparation method of dry absorbent articles, including the following preparation steps:
1)制备透液性表层，所述透液性表层具有沿其长度方向延伸的纵向及与所述纵向相垂直的横向；1) preparing a liquid-permeable surface layer, the liquid-permeable surface layer having a longitudinal direction extending along its length direction and a transverse direction perpendicular to the longitudinal direction;
2)制备吸收芯体；2) Preparation of absorbent core;
3)制备不透液性底层；3) Preparation of liquid-impermeable bottom layer;
4)将前述各步骤制得的所述透液性表层、吸收芯体及不透液性底层复合成一体制得干爽吸收物品；4) Combining the liquid-permeable surface layer, absorbent core and liquid-impermeable bottom layer prepared by the foregoing steps into a dry absorbent article;
所述制备吸收芯体包括下述步骤：The preparation of the absorbent core includes the following steps:
①将20～35g/m
2的亲水面层材料以连续输送方式输入到一对压辊总成，所述压辊总成包括一根凹辊和一根凸辊，所述凹辊的圆周外侧面均布有复数个成型槽，各所述成型槽位于凹辊径向外侧的截面积介于15mm
2～100mm
2之间，并且沿凹辊轴心线向径向外侧延伸的方向，各所述成型槽的截面积逐渐增加，各所述相邻成型槽的距离介于1～5mm，所述凸辊的径向外侧设有对应各成型槽尺寸的成型柱，所述凹辊和所述凸辊啮合传动连接设置，至少所述凹辊或者凸辊中的一个通过加热装置将温度加热至60～115℃，从而在亲水面层材料形成阵列式的容置槽，所述容置槽的深度介于3～6mm；
① The hydrophilic surface layer material of 20～35g/m 2 is continuously conveyed into a pair of pressure roller assemblies, the pressure roller assembly includes a concave roller and a convex roller, the circumference of the concave roller A plurality of forming grooves are uniformly distributed on the outer surface, and the sectional area of each forming groove located on the radially outer side of the concave roller is between 15 mm 2 and 100 mm 2 , and along the radially outward direction along the axis of the concave roller, each The cross-sectional area of the forming groove gradually increases, the distance between each adjacent forming groove is between 1 to 5 mm, the radially outer side of the convex roller is provided with a forming column corresponding to the size of each forming groove, the concave roller and the The convex rollers are engaged and connected with transmission, and at least one of the concave rollers or the convex rollers is heated to a temperature of 60-115°C by a heating device, thereby forming an array of containing grooves on the hydrophilic surface material. The depth of the groove is between 3～6mm;
②将所述亲水面层材料的容置槽的开口朝上，并通过一吸水性树脂添加装置向各该容置槽添加吸水性树脂，添加量为150～300g/m
2，所述吸水性树脂添加装置包括一具有一定容积的容器，容器的底部设有矩形下料口，下料口上设有控制下料口开、关及开口大小的控制板，沿亲水面层材料的输送方向，所述下料口下游位于容置槽的上表面设有限量板，该限量板用于移除多余的吸水性树脂；
②Turn the opening of the accommodating tank of the hydrophilic surface layer material upward, and add water-absorbent resin to each accommodating tank through a water-absorbent resin adding device, the addition amount is 150-300g/m 2 , the water absorption The resin adding device includes a container with a certain volume. The bottom of the container is provided with a rectangular discharge port. The discharge port is equipped with a control board for controlling the opening, closing and opening of the discharge port, along the conveying direction of the hydrophilic surface layer material. , A limiting plate is provided on the upper surface of the accommodating tank downstream of the discharging port, and the limiting plate is used to remove excess water-absorbing resin;
③将另一不织布材料以连续输送的方式盖设于前述亲水面层材料所述容置槽的上方；③ Cover another non-woven fabric material above the containing groove of the hydrophilic surface layer material in a continuous conveying manner;
④将所述亲水面层材料及其上的不织布材料经过一对压合辊进行热压合处理，使得不织布材料与各所述容置槽的上侧沿固定连接，所述压合辊的温度加热至60～110℃；④ Pass the hydrophilic surface layer material and the non-woven fabric material on it through a pair of pressing rollers for hot pressing, so that the non-woven material is fixedly connected to the upper edge of each containing groove, and the pressing roller The temperature is heated to 60～110℃;
⑤将热压合处理后的亲水面层材料及不织布材料经过超声波复合装置进行封合处理，使得亲水面层材料及不织布材料的横向两侧沿紧密粘合；⑤The hydrophilic surface layer material and non-woven fabric material after the heat pressing process are sealed by an ultrasonic composite device, so that the hydrophilic surface layer material and the non-woven fabric material are tightly bonded along the lateral sides;
⑥沿亲水面层材料的输送方向，将步骤5)热压合处理后的芯体翻转180度，使得亲水面层材料位于不织布材料的上方；⑥ Along the transportation direction of the hydrophilic surface layer material, turn the core body after step 5) thermocompression treatment by 180 degrees, so that the hydrophilic surface layer material is located above the non-woven material;
⑦将翻转后的芯体按设定的长度进行分切，从而制得吸收芯体。⑦Cut the flipped core according to the set length to make the absorbent core.
进一步的改进是：所述步骤④或步骤⑤或步骤⑥之后，沿亲水面层材料的输送方向，将所述亲水面层材料及不织布材料通过热焊接或者超声波焊接的方式在两者之间形成2-12个焊接点，防止芯体发生残裂、结团。A further improvement is: after the step ④ or step ⑤ or step ⑥, the hydrophilic surface layer material and the non-woven fabric material are welded between the two by heat welding or ultrasonic welding along the transportation direction of the hydrophilic surface layer material. Form 2-12 welding points between them to prevent the core from cracking and clumping.
进一步的改进是：所述焊接点为4个。A further improvement is that there are 4 welding points.
通过采用前述技术方案，本发明的有益效果是：本发明的干爽吸收物品的制备方法，采用在线复合的方式实现，芯体的制备方法中，先采用一对压辊总成在亲水面层材料上形成阵列式的容置槽，容置槽从底部沿着开口方向的横截面积逐渐增加，吸水树脂通过一具有一定容积的容器添加，容器的底部设有下料口，下料口上设置有控制板，通过控制板控制吸水树脂的下料量，并且在下料口下游位于容置槽的上表面设置有限量板，该限量板的设置可以用于移除多余的吸水树脂，使得吸水树脂只在该容置槽内填充，处于容置槽周边均没有吸水树脂，有利于亲水面层材料与其上的不织布热粘合，若容置槽周边存在吸水树脂则在热粘合后由于吸水树脂本身不具有粘性，该处的亲水面层材料与不织布无法实现粘合，会导致吸水树脂发生偏移及聚集；By adopting the aforementioned technical solution, the beneficial effect of the present invention is: the preparation method of the dry absorbent article of the present invention is realized by online compounding. In the preparation method of the core, a pair of pressure roller assemblies are first used on the hydrophilic surface layer. An array of containing tanks is formed on the material, and the cross-sectional area of the containing tank along the opening direction from the bottom gradually increases. The water-absorbing resin is added through a container with a certain volume. The bottom of the container is provided with a discharge port, and the discharge port is provided There is a control board, through which the amount of water-absorbent resin is controlled, and a limited amount plate is set on the upper surface of the containing tank downstream of the discharge port. The setting of the limited plate can be used to remove excess water-absorbent resin to make water-absorbent resin It is only filled in the accommodating groove, and there is no water-absorbent resin around the accommodating groove, which is conducive to the thermal bonding of the hydrophilic surface layer material and the non-woven fabric on it. The resin itself is not sticky, and the hydrophilic surface layer material and the non-woven fabric cannot be bonded, which will cause the water-absorbent resin to shift and aggregate;
其次，在将热压合处理后的亲水面层材料及不织布材料经过超声波复合装置进行封合处理，使得亲水面层材料及不织布材料的横向两侧沿紧密粘合；Secondly, the hydrophilic surface layer material and non-woven fabric material after the thermal compression process are sealed by an ultrasonic composite device, so that the hydrophilic surface layer material and the non-woven fabric material are tightly bonded along the lateral sides;
通过对采用本发明制备方法得到的产品进行测试，其吸收量、吸收速度、反渗量都符合相应的国家标准，且采用本技术方案制得的产品，其成本相比传统产品降低超过30％，产品也更加环保。By testing the product obtained by using the preparation method of the present invention, its absorption, absorption speed, and reverse osmosis volume all meet the corresponding national standards, and the cost of products prepared by using this technical solution is reduced by more than 30% compared with traditional products , The product is also more environmentally friendly.
图1为本发明实施例一中吸收芯体的结构示意图；Figure 1 is a schematic diagram of the structure of the absorbent core in the first embodiment of the present invention;
图2为本发明实施例一中吸收芯体的剖视图；Figure 2 is a cross-sectional view of the absorbent core in the first embodiment of the present invention;
图3为本发明实施例一中凹辊的结构示意图；3 is a schematic diagram of the structure of the concave roller in the first embodiment of the present invention;
图4为本发明实施例一中凸辊的结构示意图；4 is a schematic diagram of the structure of the convex roller in the first embodiment of the present invention;
图5为本发明实施例一吸水性树脂添加装置的结构示意图；5 is a schematic diagram of the structure of a water-absorbent resin adding device according to an embodiment of the present invention;
图6为本发明实施例二中吸收芯体的结构示意图。Fig. 6 is a schematic diagram of the structure of the absorbent core in the second embodiment of the present invention.
以下将结合具体实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成技术效果的实现过程能充分理解并据以实施。The implementation of the present invention will be described in detail below with reference to specific embodiments, so as to fully understand how the present invention applies technical means to solve technical problems and achieve the realization process of technical effects and implement them accordingly.
若未特别指明，实施例中所采用的技术手段为本领域技术人员所熟知的常规手段，所采用的试剂和产品也均为可商业获得的。所用试剂的来源、商品名以及有必要列出其组成成分者，均在首次出现时标明。Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the reagents and products used are also commercially available. The source of the reagents used, the trade name, and those where it is necessary to list their constituents are all indicated when they first appear.
实施例一Example one
参考图1至图5，一种干爽纸尿裤的制备方法，包括以下制备步骤：1 to 5, a method for preparing dry diapers includes the following preparation steps:
1)制备透液性表层，所述透液性表层具有沿其长度方向延伸的纵向及与所述纵向相垂直的横向，所述透液性表层由亲水无纺布及设置在亲水无纺布横向两侧的疏水无纺布组成；1) Prepare a liquid-permeable surface layer. The liquid-permeable surface layer has a longitudinal direction extending along its length and a transverse direction perpendicular to the longitudinal direction. The liquid-permeable surface layer is made of a hydrophilic non-woven fabric and arranged on a hydrophilic non-woven fabric. Composition of hydrophobic non-woven fabric on both sides of woven fabric;
2)制备吸收芯体，具体步骤为：2) Preparation of absorbent core, the specific steps are:
2.1、将20g/m
2的亲水无纺布7以连续输送方式输入到一对压辊总成，所述压辊总成包括一根凹辊1和一根凸辊2，所述凹辊1的圆周外侧面均布有复数个成型槽3，各所述成型槽3位于凹辊1径向外侧的截面积介于15mm
2～100mm
2之间，并且沿凹辊轴心线向径向外侧延伸的方向，各所述成型槽的截面积逐渐增加，各所述相邻成型槽的距离为2mm，所述凸辊2的径向外侧设有对应各成型槽尺寸的成型柱4，所述凹辊1和所述凸辊2啮合传动连接设置，所述凹辊1通过加热装置将温度加热至60℃，从而在亲水无纺布形成阵列式的容置槽，所述容置槽的深度为5mm；
2.1. Feed the hydrophilic non-woven fabric 7 of 20g/m 2 into a pair of pressure roller assemblies in a continuous conveying manner. The pressure roller assembly includes a concave roller 1 and a convex roller 2. The concave roller A plurality of forming grooves 3 are uniformly distributed on the outer circumferential surface of 1 and the cross-sectional area of each forming groove 3 located on the radially outer side of the concave roller 1 is between 15mm 2 and 100mm 2 , and is radially along the axis of the concave roller In the direction in which the outside extends, the cross-sectional area of each forming groove gradually increases, the distance between each adjacent forming groove is 2mm, and the radial outside of the convex roller 2 is provided with a forming column 4 corresponding to the size of each forming groove, so The concave roller 1 and the convex roller 2 are arranged in meshing transmission connection, and the concave roller 1 is heated to 60° C. by a heating device, thereby forming an array of containing grooves in the hydrophilic non-woven fabric. The depth is 5mm;
2.2、将所述亲水无纺布7的容置槽的开口朝上，并通过一吸水性树脂添加装置向各该容置槽添加吸水性树脂6，添加量为200g/m
2，所述吸水性树脂添加 装置包括一具有一定容积的容器51，容器51的底部设有矩形下料口52，下料口52上设有控制下料口52开、关及开口大小的控制板53，沿亲水无纺布的输送方向，所述下料口52下游位于容置槽的上表面设有限量板(图中未视出)，该限量板用于移除多余的吸水性树脂；
2.2. Turn the opening of the accommodating groove of the hydrophilic non-woven fabric 7 upward, and add a water-absorbent resin 6 to each accommodating groove through a water-absorbent resin adding device, the addition amount is 200g/m 2 , the The water-absorbent resin adding device includes a container 51 with a certain volume. The bottom of the container 51 is provided with a rectangular discharge port 52. The discharge port 52 is provided with a control board 53 for controlling the opening, closing and opening of the discharge port 52. In the conveying direction of the hydrophilic non-woven fabric, a limit plate (not shown in the figure) is provided on the upper surface of the accommodating groove downstream of the discharge opening 52, and the limit plate is used to remove excess water-absorbing resin;
2.3、将另一不织布材料8以连续输送的方式盖设于前述亲水无纺布7所述容置槽的上方；2.3. Cover another non-woven fabric material 8 above the containing groove of the aforementioned hydrophilic non-woven fabric 7 in a continuous conveying manner;
2.4、将所述亲水无纺布7及其上的不织布材料8经过一对压合辊进行热压合处理，使得不织布材料8与各所述容置槽的上侧沿固定连接，所述压合辊的温度加热至80℃；2.4. Pass the hydrophilic non-woven fabric 7 and the non-woven fabric material 8 on it through a pair of pressing rollers for thermal compression processing, so that the non-woven fabric material 8 is fixedly connected to the upper edge of each accommodating groove. The temperature of the pressing roller is heated to 80°C;
2.5、将热压合处理后的亲水无纺布7及不织布材料8经过超声波复合装置进行封合处理，使得亲水无纺布7及不织布材料8的横向两侧沿紧密粘合；2.5. The hydrophilic non-woven fabric 7 and the non-woven fabric material 8 after the thermal compression treatment are sealed by an ultrasonic composite device, so that the hydrophilic non-woven fabric 7 and the non-woven fabric material 8 are tightly bonded along the lateral sides;
2.6、沿亲水无纺布7的输送方向，将步骤5)热压合处理后的芯体翻转180度，使得亲水无纺布7在上方，而不织布材料8在下方，所述不织布材料8可以是亲水无纺布也可以是拒水无纺布。2.6. Along the conveying direction of the hydrophilic non-woven fabric 7, turn the core body after step 5) thermocompression treatment by 180 degrees so that the hydrophilic non-woven fabric 7 is on the top and the non-woven fabric material 8 is on the bottom. 8 can be a hydrophilic non-woven fabric or a water-repellent non-woven fabric.
2.7、将翻转后的芯体按设定的长度进行分切，从而制得吸收芯体。2.7. Cut the flipped core according to the set length to obtain an absorbent core.
3)制备导流层；3) Preparation of diversion layer;
4)制备不透液性底层，所述不透液性底层由透气底膜及设置在透气底膜底部的无纺布复合而成；4) preparing a liquid-impermeable bottom layer, which is composed of a breathable bottom film and a non-woven fabric arranged at the bottom of the breathable bottom film;
5)制备前腰贴、腿围橡筋、魔术扣；5) Prepare front waist stickers, leg bands, and Velcro;
6)将前述各步骤制得的所述透液性表层、吸收芯体、不透液性底层、前腰贴、腿围橡筋及魔术扣复合成一体制得干爽纸尿裤；6) The liquid-permeable surface layer, the absorbent core, the liquid-impermeable bottom layer, the front waist patch, the leg elastics and the Velcro made by the foregoing steps are combined into a dry diaper;
实施例二Example 2
参考图6及实施例一，一种干爽卫生巾的制备方法，吸收芯体的制备步骤在步骤6)之后还进行以下处理：沿亲水面层材料的输送方向，将所述亲水面层材料及不织布材料通过热焊接的方式在两者之间形成4个焊接点9。与实施例一相比，本实施例少了步骤5)，增加了护翼及离型纸的制备及与其他部件复合的步骤，所述护翼设置在吸收芯体的横向两侧，所述离型纸通过胶水粘合设置在护 翼及不透液性底层的底部。Referring to Figure 6 and Example 1, a method for preparing a dry sanitary napkin, the preparation step of the absorbent core is further processed after step 6): the hydrophilic surface layer is transported along the transport direction of the hydrophilic surface layer material The material and the non-woven fabric are thermally welded to form 4 welding points 9 between them. Compared with the first embodiment, this embodiment lacks step 5), and adds the steps of preparing wings and release paper and compounding with other components. The wings are arranged on both lateral sides of the absorbent core. The release paper is set on the bottom of the wings and the liquid-impermeable bottom layer by glue bonding.
其中，本发明中，亲水面层材料的基重在20～35g/m
2，各所述成型槽位于凹辊径向外侧的截面积介于15mm
2～100mm
2之间，各所述相邻成型槽的距离介于1～5mm，所述凹辊或者凸辊中的一个通过加热装置将温度加热至60～115℃，所述容置槽的深度介于3～6mm，吸水性树脂的添加量在150～300g/m
2，压合辊的温度加热至60～110℃，焊接点的数量在2-12个，在以上参数范围内均可实现本发明的目的。
Wherein, in the present invention, the basis weight of the hydrophilic surface layer material is 20-35g/m 2 , the cross-sectional area of each of the forming grooves located on the radially outer side of the concave roller is between 15mm 2 and 100mm 2 , and each of the phases The distance between adjacent molding grooves is between 1 and 5mm, one of the concave roller or convex roller is heated to 60～115℃ by a heating device, and the depth of the containing groove is between 3 and 6mm. The addition amount is 150-300g/m 2 , the temperature of the pressing roll is heated to 60-110°C, the number of welding points is 2-12, and the objective of the present invention can be achieved within the above parameter range.
另外，本发明的干爽吸收物品可以是纸尿裤，卫生巾等一次性吸收物品。In addition, the dry absorbent article of the present invention may be disposable absorbent articles such as diapers and sanitary napkins.
以上所记载，仅为利用本创作技术内容的实施例，任何熟悉本项技艺者运用本创作所做的修饰、变化，皆属本创作主张的专利范围，而不限于实施例所揭示者。The above records are only examples of using the content of this creation technology. Any modification or change made by this creation by a person familiar with this art belongs to the patent scope of this creation and is not limited to those disclosed in the examples.
Claims (3)
- 一种干爽吸收物品的制备方法，包括以下制备步骤：A method for preparing dry absorbent articles includes the following preparation steps:1)制备透液性表层，所述透液性表层具有沿其长度方向延伸的纵向及与所述纵向相垂直的横向；1) preparing a liquid-permeable surface layer, the liquid-permeable surface layer having a longitudinal direction extending along its length direction and a transverse direction perpendicular to the longitudinal direction;2)制备吸收芯体；2) Preparation of absorbent core;3)制备不透液性底层；3) Preparation of liquid-impermeable bottom layer;4)将前述各步骤制得的所述透液性表层、吸收芯体及不透液性底层复合成一体制得干爽吸收物品；4) Combining the liquid-permeable surface layer, absorbent core and liquid-impermeable bottom layer prepared by the foregoing steps into a dry absorbent article;其特征在于：所述制备吸收芯体包括下述步骤：It is characterized in that: the preparation of the absorbent core includes the following steps:①将20～35g/m 2的亲水面层材料以连续输送方式输入到一对压辊总成，所述压辊总成包括一根凹辊和一根凸辊，所述凹辊的圆周外侧面均布有复数个成型槽，各所述成型槽位于凹辊径向外侧的截面积介于15mm 2～100mm 2之间，并且沿凹辊轴心线向径向外侧延伸的方向，各所述成型槽的截面积逐渐增加，各所述相邻成型槽的距离介于1～5mm，所述凸辊的径向外侧设有对应各成型槽尺寸的成型柱，所述凹辊和所述凸辊啮合传动连接设置，至少所述凹辊或者凸辊中的一个通过加热装置将温度加热至60～115℃，从而在亲水面层材料形成阵列式的容置槽，所述容置槽的深度介于3～6mm； ① The hydrophilic surface layer material of 20～35g/m 2 is continuously conveyed into a pair of pressure roller assemblies, the pressure roller assembly includes a concave roller and a convex roller, the circumference of the concave roller A plurality of forming grooves are uniformly distributed on the outer surface, and the sectional area of each forming groove located on the radially outer side of the concave roller is between 15mm 2 and 100mm 2 , and along the radially outward direction along the axis of the concave roller, each The cross-sectional area of the forming groove gradually increases, the distance between each adjacent forming groove is between 1 to 5 mm, the radially outer side of the convex roller is provided with a forming column corresponding to the size of each forming groove, the concave roller and the The convex rollers are engaged and connected with transmission, and at least one of the concave rollers or the convex rollers is heated to a temperature of 60-115°C by a heating device, thereby forming an array of containing grooves on the hydrophilic surface material. The depth of the groove is between 3～6mm;②将所述亲水面层材料的容置槽的开口朝上，并通过一吸水性树脂添加装置向各该容置槽添加吸水性树脂，添加量为150～300g/m 2，所述吸水性树脂添加装置包括一具有一定容积的容器，容器的底部设有矩形下料口，下料口上设有控制下料口开、关及开口大小的控制板，沿亲水面层材料的输送方向，所述下料口下游位于容置槽的上表面设有限量板，该限量板用于移除多余的吸水性树脂； ②Turn the opening of the accommodating tank of the hydrophilic surface layer material upward, and add water-absorbent resin to each accommodating tank through a water-absorbent resin adding device, the addition amount is 150-300g/m 2 , the water absorption The resin adding device includes a container with a certain volume. The bottom of the container is provided with a rectangular discharge port. The discharge port is equipped with a control board for controlling the opening, closing and opening of the discharge port, along the conveying direction of the hydrophilic surface layer material. , A limiting plate is provided on the upper surface of the accommodating tank downstream of the discharging port, and the limiting plate is used to remove excess water-absorbing resin;③将另一不织布材料以连续输送的方式盖设于前述亲水面层材料所述容置槽的上方；③ Cover another non-woven fabric material above the containing groove of the hydrophilic surface layer material in a continuous conveying manner;④将所述亲水面层材料及其上的不织布材料经过一对压合辊进行热压合处理，使得不织布材料与各所述容置槽的上侧沿固定连接，所述压合辊的温度加热至60～110℃；④ Pass the hydrophilic surface layer material and the non-woven fabric material on it through a pair of pressing rollers for hot pressing, so that the non-woven material is fixedly connected to the upper edge of each containing groove, and the pressing roller The temperature is heated to 60～110℃;⑤将热压合处理后的亲水面层材料及不织布材料经过超声波复合装置进行封合处理，使得亲水面层材料及不织布材料的横向两侧沿紧密粘合；⑤The hydrophilic surface layer material and non-woven fabric material after the heat pressing process are sealed by an ultrasonic composite device, so that the hydrophilic surface layer material and the non-woven fabric material are tightly bonded along the lateral sides;⑥沿亲水面层材料的输送方向，将步骤5)热压合处理后的芯体翻转180度，使得亲水面层材料位于不织布材料的上方；⑥ Along the transportation direction of the hydrophilic surface layer material, turn the core body after step 5) thermocompression treatment by 180 degrees, so that the hydrophilic surface layer material is located above the non-woven material;⑦将翻转后的芯体按设定的长度进行分切，从而制得吸收芯体。⑦Cut the flipped core according to the set length to make the absorbent core.
- 根据权利要求1所述的一种干爽吸收物品的制备方法，其特征在于：所述步骤④或步骤⑤或步骤⑥之后，沿亲水面层材料的输送方向，将所述亲水面层材料及不织布材料通过热焊接或者超声波焊接的方式在两者之间形成2-12个焊接点。The method for preparing a dry absorbent article according to claim 1, characterized in that: after step ④ or step ⑤ or step ⑥, the hydrophilic surface layer material is transported along the conveying direction of the hydrophilic surface layer material And the non-woven material can form 2-12 welding points between the two through thermal welding or ultrasonic welding.
- 根据权利要求2所述的一种干爽吸收物品的制备方法，其特征在于：所述焊接点为4个。The method for preparing a dry absorbent article according to claim 2, wherein the number of welding points is four.
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| CN110464548A (en) * | 2019-08-22 | 2019-11-19 | 北京倍舒特妇幼用品有限公司 | A kind of incontinence dressing with skin sparing effect |
| CN110613557B (en) * | 2019-09-24 | 2021-01-08 | 福建恒安集团有限公司 | Preparation method of disposable absorbent sanitary product |
| CN110916904B (en) * | 2019-12-19 | 2021-10-12 | 福建恒安集团有限公司 | Ultrasonic three-dimensional absorber and preparation method thereof |
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| CN109771141A (en) * | 2019-01-16 | 2019-05-21 | 泉州市泰迪新材料科技有限公司 | A kind of preparation method of dry and comfortable absorbing articles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109771141A (en) | 2019-05-21 |
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